The document discusses cell biology and genetics concepts. It begins by defining key terms like cell, cell theory, and the two main types of cells - prokaryotes and eukaryotes. It then describes several organelles found in animal and plant cells like the nucleus, mitochondria, chloroplasts, and cell membrane. It next summarizes Gregor Mendel's experiments with pea plants that discovered the principles of heredity and genetics, including dominant and recessive traits. In the last section, it provides word problems applying concepts of cell biology, genetics, and ratios.
The document provides information about cell structure and organelles. It discusses:
- Cells as the basic structural and functional units of organisms.
- The cell theory proposed by Schleiden and Schwann stating that cells are the basic unit of life, all cells come from preexisting cells, and organisms are made of cells.
- Key organelles like the nucleus, endoplasmic reticulum, ribosomes, Golgi apparatus, mitochondria, and lysosomes and their functions.
Biology is the study of living organisms. It examines the structure, function, growth, origin, evolution, distribution, and classification of living things. There are five unifying principles of biology: cell theory, evolution, gene theory, energy, and homeostasis. Currently, biologists accept that organisms exhibit homeostasis, organization, metabolism, growth, adaptation, response to stimuli, reproduction, and have DNA as their hereditary molecule. The document discusses these characteristics and uses various examples to explore what defines life. It also considers whether certain entities like fire, viruses, bacteria, fungi, plants, and cars are considered alive.
The document summarizes key properties and structures of cells. It discusses that all living things are made of cells, which are the basic unit of life. It describes the differences between prokaryotic and eukaryotic cells, and some of the major organelles in plant and animal cells like the nucleus, mitochondria, chloroplasts, cell membrane, cytoskeleton etc. It explains their functions and importance for cellular processes.
This document is a biology final exam for Mrs. Glemaud's class in 2010-2011. It contains 60 multiple choice questions testing students' knowledge of key biology concepts across several units, including cell structure and function, cellular respiration, photosynthesis, genetics, and mitosis. The questions cover topics such as the parts of the cell, organelle functions, energy production in cells, the cell cycle, Mendelian genetics, and inheritance of traits.
The document provides a review of key biology concepts across several topics:
1) It begins with an outline of topics including cell biology, genetics, evolution, microscopy, and ecology.
2) It then presents vocabulary terms and their definitions related to these topics, such as organic compounds, ATP, osmosis, and active transport.
3) The document concludes by listing additional review concepts and questions to test understanding of the material.
This document contains information about cell division through mitosis:
1. It describes the 5 stages of mitosis - prophase, metaphase, anaphase, telophase, and interphase. Key events at each stage like chromosome condensation, alignment at the equator, separation of chromatids, and cytokinesis are mentioned.
2. Diagrams (Figures a-e) show cell characteristics at different mitosis stages like chromosome structure, spindle fiber formation, and separation of daughter nuclei.
3. Asexual reproduction through mitosis is summarized - it allows unicellular organisms and cells in multicellular organisms to reproduce without fertilization, maintaining chromosome number. Mitosis has agricultural uses like cloning
This document summarizes key aspects of cell structure and function. It begins by defining a cell as the smallest unit capable of life functions and outlines common traits such as a cell membrane and cytoplasm. It then compares cell sizes and shapes, noting how shape relates to function. The document introduces the two main cell types - prokaryotic and eukaryotic - and describes their distinguishing features. Finally, it provides an overview of major cell organelles such as the nucleus, mitochondria, chloroplasts, and vacuoles, explaining each organelle's structure and role within the cell.
The document provides information about cell structure and organelles. It discusses:
- Cells as the basic structural and functional units of organisms.
- The cell theory proposed by Schleiden and Schwann stating that cells are the basic unit of life, all cells come from preexisting cells, and organisms are made of cells.
- Key organelles like the nucleus, endoplasmic reticulum, ribosomes, Golgi apparatus, mitochondria, and lysosomes and their functions.
Biology is the study of living organisms. It examines the structure, function, growth, origin, evolution, distribution, and classification of living things. There are five unifying principles of biology: cell theory, evolution, gene theory, energy, and homeostasis. Currently, biologists accept that organisms exhibit homeostasis, organization, metabolism, growth, adaptation, response to stimuli, reproduction, and have DNA as their hereditary molecule. The document discusses these characteristics and uses various examples to explore what defines life. It also considers whether certain entities like fire, viruses, bacteria, fungi, plants, and cars are considered alive.
The document summarizes key properties and structures of cells. It discusses that all living things are made of cells, which are the basic unit of life. It describes the differences between prokaryotic and eukaryotic cells, and some of the major organelles in plant and animal cells like the nucleus, mitochondria, chloroplasts, cell membrane, cytoskeleton etc. It explains their functions and importance for cellular processes.
This document is a biology final exam for Mrs. Glemaud's class in 2010-2011. It contains 60 multiple choice questions testing students' knowledge of key biology concepts across several units, including cell structure and function, cellular respiration, photosynthesis, genetics, and mitosis. The questions cover topics such as the parts of the cell, organelle functions, energy production in cells, the cell cycle, Mendelian genetics, and inheritance of traits.
The document provides a review of key biology concepts across several topics:
1) It begins with an outline of topics including cell biology, genetics, evolution, microscopy, and ecology.
2) It then presents vocabulary terms and their definitions related to these topics, such as organic compounds, ATP, osmosis, and active transport.
3) The document concludes by listing additional review concepts and questions to test understanding of the material.
This document contains information about cell division through mitosis:
1. It describes the 5 stages of mitosis - prophase, metaphase, anaphase, telophase, and interphase. Key events at each stage like chromosome condensation, alignment at the equator, separation of chromatids, and cytokinesis are mentioned.
2. Diagrams (Figures a-e) show cell characteristics at different mitosis stages like chromosome structure, spindle fiber formation, and separation of daughter nuclei.
3. Asexual reproduction through mitosis is summarized - it allows unicellular organisms and cells in multicellular organisms to reproduce without fertilization, maintaining chromosome number. Mitosis has agricultural uses like cloning
This document summarizes key aspects of cell structure and function. It begins by defining a cell as the smallest unit capable of life functions and outlines common traits such as a cell membrane and cytoplasm. It then compares cell sizes and shapes, noting how shape relates to function. The document introduces the two main cell types - prokaryotic and eukaryotic - and describes their distinguishing features. Finally, it provides an overview of major cell organelles such as the nucleus, mitochondria, chloroplasts, and vacuoles, explaining each organelle's structure and role within the cell.
This document provides a biology exam for a high school student covering topics like homeostasis, tissues, organ systems, and their structures and functions. It contains multiple choice questions, short answer questions, diagrams to label, data to analyze, and critical thinking questions about concepts like homeostasis, tissues, and organ systems.
This document contains answers to objective and structured questions from a chapter on plant and animal cell structure. It includes:
- Multiple choice answers identifying organelle labels and functions
- Descriptions of the differences between plant and animal cells and the structures found in plant cells like the cell wall, chloroplasts and central vacuole
- A procedure for viewing plant cell structures under a microscope by examining onion skin cells
Eukaryotes have a more complex cell structure than prokaryotes, with compartmentalization into membrane-bound organelles. An electron micrograph shows the organelles of a plant cell, including the nucleus, mitochondria, chloroplasts, and large central vacuole. Electron microscopes have much higher resolution than light microscopes due to the shorter wavelength of electrons. This allows observation of ultrastructure and viruses. Prokaryotes lack compartmentalization, while eukaryotes have organelles that perform specialized functions.
The document summarizes key points about the origin of cells:
1. Cell theory states that all living things are made of cells, the cell is the smallest unit of life, and cells only come from pre-existing cells.
2. Pasteur's experiments in 1864 disproved spontaneous generation and provided evidence that cells only arise from other cells.
3. Miller and Urey's experiments in 1953 simulated early Earth conditions and formed simple organic molecules like amino acids, providing evidence that the first cells could have originated from non-living materials.
4. The endosymbiotic theory explains the origin of eukaryotic cells, proposing that organelles like mitochondria and chloroplasts originally came from
This document describes the structures and functions of organelles in plant and animal cells. It discusses the nucleus, ribosomes, endoplasmic reticulum, Golgi complex, lysosomes, mitochondria, which are common to both cell types. Organelles unique to plant cells are vacuoles, which store water, and chloroplasts, which perform photosynthesis using chlorophyll. A cell wall located outside the cell membrane provides structure and protection to plant cells.
The document provides an overview of cell structure and function, beginning with the history of cell discovery using microscopes. It describes the various organelles found inside cells, such as the nucleus that contains DNA, mitochondria that produce energy, and ribosomes that synthesize proteins. The roles of the cell membrane, cell wall, and various transport mechanisms involved in moving materials into and out of cells are also explained.
Eukaryotic cells have a more complex internal structure than prokaryotic cells due to their compartmentalization into organelles. This compartmentalization provides several advantages, including concentrating enzymes and substrates, separating incompatible reactions, and maintaining optimal conditions within each organelle. Our knowledge of eukaryotic cell structure, including identification of organelles like the nucleus, mitochondria, chloroplasts, and others, has increased due to the development of electron microscopes, which have much higher resolution than light microscopes and allow visualization of intracellular structures.
1. The document provides lecture notes on cell biology that discuss key topics like water as the universal solvent for life, biomolecules, inorganic ions, microscope development, and the cell theory.
2. Key details are provided on the structure and properties of water that allow it to perform critical functions for living organisms. Important biomolecules like carbohydrates, lipids, proteins, and nucleic acids are also summarized along with their main functions.
3. The development of the light microscope and electron microscopes are outlined, noting how each allowed the discovery and further study of cellular structures at increasingly higher resolutions. The three main points of the cell theory proposed by Schwann are also stated.
1. The document discusses the structure and properties of cell membranes. It describes how phospholipid molecules form a bilayer structure in water, with their hydrophobic tails associating together and hydrophilic heads facing outwards.
2. The early "Davson-Danielli" model of the cell membrane proposed that proteins coated the surface of the phospholipid bilayer. However, evidence from techniques like freeze-fracturing and fluorescent tagging showed that some proteins pass through the membrane and are able to move laterally within it.
3. This evidence led to the "Singer-Nicholson fluid mosaic model", which describes the cell membrane as a fluid bilayer of phospholipids with integral and peripheral proteins dispersed within
Cell biology is the study of cell structure and function. Key developments include Hooke observing cork cell structure in the 1600s, van Leeuwenhoek observing bacteria in the 1670s, and the cell theory proposed by Schleiden and Schwann in the 1830s stating that all organisms are composed of cells. Eukaryotic cells contain membrane-bound organelles like the nucleus, mitochondria and chloroplasts, while prokaryotic cells like bacteria lack membrane-bound organelles. Organelles perform specialized functions like ATP production in mitochondria and photosynthesis in chloroplasts. The cytoplasm and cytoskeleton provide structure and transport within the cell.
1. Anton van Leeuwenhoek first observed cells in the late 1600s using a microscope he had invented.
2. Cells are the basic unit of all living things. Robert Hooke first used the term "cell" in 1665 to describe the box-like structures he saw while examining cork.
3. In 1838, Schleiden and Schwann proposed the cell theory: all organisms are composed of cells, cells are the basic unit of life, and new cells are produced from existing cells.
This document compares and contrasts prokaryotic and eukaryotic cells. It includes figures of cell size comparisons and identifies key cellular structures like the nucleus, organelles, plasma membrane, and cytoplasm. A Venn diagram outlines similarities and differences between prokaryotes and eukaryotes such as prokaryotes lacking a nucleus and organelles that eukaryotes have. Examples of prokaryotes include bacteria while eukaryotes include plants, animals, fungi, and some single-celled organisms.
1. The document summarizes key concepts about cell structure from chapters 4.1 to 4.7, including the definition of a cell, components of prokaryotic and eukaryotic cells, and structures like the cell membrane, nucleus, and organelles.
2. It describes the use of microscopes to study cells too small to see with the naked eye, and the distinguishing features of plant, animal, and bacterial cells.
3. The lipid bilayer and fluid mosaic models of the cell membrane are introduced, as well as membrane proteins that transport molecules, act as receptors, and mark cell identity. Bacteria and archaea typically lack internal membranes but have diverse shapes and capabilities.
Chapter 7 cells power point student versionwatsonma12
The document summarizes key concepts about cell structure and function from Chapter 7 of a biology textbook. It begins by describing the early discoveries of cells in the 1600s by Hooke and Leeuwenhoek. It then outlines the Cell Theory developed in the 1830s-1850s. The rest of the document details the structures and functions of eukaryotic and prokaryotic cells, including organelles like the nucleus, mitochondria, chloroplasts, and cell membrane. It explains cellular processes like diffusion, osmosis, facilitated diffusion and active transport across the cell membrane.
This document provides information about cell structure and organization. It begins by defining organelles and listing the organelles found in animal and plant cells. It then describes the structure and function of several key organelles, including the nucleus, mitochondria, chloroplasts, Golgi apparatus, lysosomes, endoplasmic reticulum, ribosomes, and vacuoles. It also discusses non-organelles like the plasma membrane, cell wall, and cytoplasm. The document concludes by contrasting the similarities and differences between animal and plant cells, and explaining how cellular organization allows unicellular and multicellular organisms to carry out basic life processes.
Eukaryotic cells contain membrane-bound organelles that carry out specialized functions, such as the nucleus which houses the DNA, mitochondria which produces energy, the endoplasmic reticulum and Golgi apparatus which process and transport proteins and lipids, and lysosomes which break down waste. Plant cells also contain a large central vacuole for storage. These organelles work together with the cytoplasm and plasma membrane to carry out the functions necessary to keep the cell alive.
Membranes control the composition of cells through active and passive transport. Passive transport includes simple diffusion, facilitated diffusion, and osmosis which allow particles to move across membranes down their concentration gradients. Active transport requires ATP and transports particles against their gradients using protein pumps. Materials are also moved within cells via vesicles budding off membranes and traveling within the cell. Materials enter and exit cells through endocytosis and exocytosis. Osmotic control is important for medical procedures where tissues must be bathed in isotonic solutions to prevent osmosis from damaging cells. Estimating osmolality through osmosis experiments provides opportunities to improve scientific skills.
The document discusses the origin of the first cells on Earth. It states that cells can only be formed through the division of pre-existing cells, so the first cells must have arisen from non-living material through a process known as abiogenesis. Abiogenesis likely occurred in four stages: 1) the non-living synthesis of simple organic molecules, 2) the assembly of these molecules into complex polymers, 3) the development of polymers that could self-replicate, and 4) the encapsulation of these molecules within membranes. Early Earth had a reducing atmosphere containing gases like hydrogen, nitrogen, and methane that could have contributed to the non-living synthesis of organic compounds from which the first cells developed.
Optometry Admission Test Practice Biology Questionsoatprep
Practice questions for the biology section of the Optometry Admission Test (OAT). For more questions and tips on how to do well on the Optometry Admission Test, please visit us at http://www.ioatprep.com/
Cells are the basic and smallest unit of life. A microscope is needed to see cells because they are so tiny. A microscope has lenses, clips, and a stage to hold samples, as well as focus knobs, to magnify cells and their structures, like the nucleus, cell membrane, and cytoplasm in cheek and onion cells. Different plant cells like onion cells have additional structures, such as a cell wall, chloroplasts, and vacuoles.
1. The document discusses the structure and organization of plant and animal cells. It describes the organelles found in typical plant and animal cells including the cell membrane, nucleus, mitochondria, chloroplasts, cell wall, vacuoles, and endoplasmic reticulum.
2. Modifications of cells are discussed to allow specialized functions. Examples given are red blood cells for oxygen transport, root hair cells for water absorption, and xylem vessels for water conduction.
3. Cells are organized into tissues, organs and systems to allow the functioning of multicellular organisms. Not all organisms are multicellular - some like amoebas are unicellular.
This document provides a biology exam for a high school student covering topics like homeostasis, tissues, organ systems, and their structures and functions. It contains multiple choice questions, short answer questions, diagrams to label, data to analyze, and critical thinking questions about concepts like homeostasis, tissues, and organ systems.
This document contains answers to objective and structured questions from a chapter on plant and animal cell structure. It includes:
- Multiple choice answers identifying organelle labels and functions
- Descriptions of the differences between plant and animal cells and the structures found in plant cells like the cell wall, chloroplasts and central vacuole
- A procedure for viewing plant cell structures under a microscope by examining onion skin cells
Eukaryotes have a more complex cell structure than prokaryotes, with compartmentalization into membrane-bound organelles. An electron micrograph shows the organelles of a plant cell, including the nucleus, mitochondria, chloroplasts, and large central vacuole. Electron microscopes have much higher resolution than light microscopes due to the shorter wavelength of electrons. This allows observation of ultrastructure and viruses. Prokaryotes lack compartmentalization, while eukaryotes have organelles that perform specialized functions.
The document summarizes key points about the origin of cells:
1. Cell theory states that all living things are made of cells, the cell is the smallest unit of life, and cells only come from pre-existing cells.
2. Pasteur's experiments in 1864 disproved spontaneous generation and provided evidence that cells only arise from other cells.
3. Miller and Urey's experiments in 1953 simulated early Earth conditions and formed simple organic molecules like amino acids, providing evidence that the first cells could have originated from non-living materials.
4. The endosymbiotic theory explains the origin of eukaryotic cells, proposing that organelles like mitochondria and chloroplasts originally came from
This document describes the structures and functions of organelles in plant and animal cells. It discusses the nucleus, ribosomes, endoplasmic reticulum, Golgi complex, lysosomes, mitochondria, which are common to both cell types. Organelles unique to plant cells are vacuoles, which store water, and chloroplasts, which perform photosynthesis using chlorophyll. A cell wall located outside the cell membrane provides structure and protection to plant cells.
The document provides an overview of cell structure and function, beginning with the history of cell discovery using microscopes. It describes the various organelles found inside cells, such as the nucleus that contains DNA, mitochondria that produce energy, and ribosomes that synthesize proteins. The roles of the cell membrane, cell wall, and various transport mechanisms involved in moving materials into and out of cells are also explained.
Eukaryotic cells have a more complex internal structure than prokaryotic cells due to their compartmentalization into organelles. This compartmentalization provides several advantages, including concentrating enzymes and substrates, separating incompatible reactions, and maintaining optimal conditions within each organelle. Our knowledge of eukaryotic cell structure, including identification of organelles like the nucleus, mitochondria, chloroplasts, and others, has increased due to the development of electron microscopes, which have much higher resolution than light microscopes and allow visualization of intracellular structures.
1. The document provides lecture notes on cell biology that discuss key topics like water as the universal solvent for life, biomolecules, inorganic ions, microscope development, and the cell theory.
2. Key details are provided on the structure and properties of water that allow it to perform critical functions for living organisms. Important biomolecules like carbohydrates, lipids, proteins, and nucleic acids are also summarized along with their main functions.
3. The development of the light microscope and electron microscopes are outlined, noting how each allowed the discovery and further study of cellular structures at increasingly higher resolutions. The three main points of the cell theory proposed by Schwann are also stated.
1. The document discusses the structure and properties of cell membranes. It describes how phospholipid molecules form a bilayer structure in water, with their hydrophobic tails associating together and hydrophilic heads facing outwards.
2. The early "Davson-Danielli" model of the cell membrane proposed that proteins coated the surface of the phospholipid bilayer. However, evidence from techniques like freeze-fracturing and fluorescent tagging showed that some proteins pass through the membrane and are able to move laterally within it.
3. This evidence led to the "Singer-Nicholson fluid mosaic model", which describes the cell membrane as a fluid bilayer of phospholipids with integral and peripheral proteins dispersed within
Cell biology is the study of cell structure and function. Key developments include Hooke observing cork cell structure in the 1600s, van Leeuwenhoek observing bacteria in the 1670s, and the cell theory proposed by Schleiden and Schwann in the 1830s stating that all organisms are composed of cells. Eukaryotic cells contain membrane-bound organelles like the nucleus, mitochondria and chloroplasts, while prokaryotic cells like bacteria lack membrane-bound organelles. Organelles perform specialized functions like ATP production in mitochondria and photosynthesis in chloroplasts. The cytoplasm and cytoskeleton provide structure and transport within the cell.
1. Anton van Leeuwenhoek first observed cells in the late 1600s using a microscope he had invented.
2. Cells are the basic unit of all living things. Robert Hooke first used the term "cell" in 1665 to describe the box-like structures he saw while examining cork.
3. In 1838, Schleiden and Schwann proposed the cell theory: all organisms are composed of cells, cells are the basic unit of life, and new cells are produced from existing cells.
This document compares and contrasts prokaryotic and eukaryotic cells. It includes figures of cell size comparisons and identifies key cellular structures like the nucleus, organelles, plasma membrane, and cytoplasm. A Venn diagram outlines similarities and differences between prokaryotes and eukaryotes such as prokaryotes lacking a nucleus and organelles that eukaryotes have. Examples of prokaryotes include bacteria while eukaryotes include plants, animals, fungi, and some single-celled organisms.
1. The document summarizes key concepts about cell structure from chapters 4.1 to 4.7, including the definition of a cell, components of prokaryotic and eukaryotic cells, and structures like the cell membrane, nucleus, and organelles.
2. It describes the use of microscopes to study cells too small to see with the naked eye, and the distinguishing features of plant, animal, and bacterial cells.
3. The lipid bilayer and fluid mosaic models of the cell membrane are introduced, as well as membrane proteins that transport molecules, act as receptors, and mark cell identity. Bacteria and archaea typically lack internal membranes but have diverse shapes and capabilities.
Chapter 7 cells power point student versionwatsonma12
The document summarizes key concepts about cell structure and function from Chapter 7 of a biology textbook. It begins by describing the early discoveries of cells in the 1600s by Hooke and Leeuwenhoek. It then outlines the Cell Theory developed in the 1830s-1850s. The rest of the document details the structures and functions of eukaryotic and prokaryotic cells, including organelles like the nucleus, mitochondria, chloroplasts, and cell membrane. It explains cellular processes like diffusion, osmosis, facilitated diffusion and active transport across the cell membrane.
This document provides information about cell structure and organization. It begins by defining organelles and listing the organelles found in animal and plant cells. It then describes the structure and function of several key organelles, including the nucleus, mitochondria, chloroplasts, Golgi apparatus, lysosomes, endoplasmic reticulum, ribosomes, and vacuoles. It also discusses non-organelles like the plasma membrane, cell wall, and cytoplasm. The document concludes by contrasting the similarities and differences between animal and plant cells, and explaining how cellular organization allows unicellular and multicellular organisms to carry out basic life processes.
Eukaryotic cells contain membrane-bound organelles that carry out specialized functions, such as the nucleus which houses the DNA, mitochondria which produces energy, the endoplasmic reticulum and Golgi apparatus which process and transport proteins and lipids, and lysosomes which break down waste. Plant cells also contain a large central vacuole for storage. These organelles work together with the cytoplasm and plasma membrane to carry out the functions necessary to keep the cell alive.
Membranes control the composition of cells through active and passive transport. Passive transport includes simple diffusion, facilitated diffusion, and osmosis which allow particles to move across membranes down their concentration gradients. Active transport requires ATP and transports particles against their gradients using protein pumps. Materials are also moved within cells via vesicles budding off membranes and traveling within the cell. Materials enter and exit cells through endocytosis and exocytosis. Osmotic control is important for medical procedures where tissues must be bathed in isotonic solutions to prevent osmosis from damaging cells. Estimating osmolality through osmosis experiments provides opportunities to improve scientific skills.
The document discusses the origin of the first cells on Earth. It states that cells can only be formed through the division of pre-existing cells, so the first cells must have arisen from non-living material through a process known as abiogenesis. Abiogenesis likely occurred in four stages: 1) the non-living synthesis of simple organic molecules, 2) the assembly of these molecules into complex polymers, 3) the development of polymers that could self-replicate, and 4) the encapsulation of these molecules within membranes. Early Earth had a reducing atmosphere containing gases like hydrogen, nitrogen, and methane that could have contributed to the non-living synthesis of organic compounds from which the first cells developed.
Optometry Admission Test Practice Biology Questionsoatprep
Practice questions for the biology section of the Optometry Admission Test (OAT). For more questions and tips on how to do well on the Optometry Admission Test, please visit us at http://www.ioatprep.com/
Cells are the basic and smallest unit of life. A microscope is needed to see cells because they are so tiny. A microscope has lenses, clips, and a stage to hold samples, as well as focus knobs, to magnify cells and their structures, like the nucleus, cell membrane, and cytoplasm in cheek and onion cells. Different plant cells like onion cells have additional structures, such as a cell wall, chloroplasts, and vacuoles.
1. The document discusses the structure and organization of plant and animal cells. It describes the organelles found in typical plant and animal cells including the cell membrane, nucleus, mitochondria, chloroplasts, cell wall, vacuoles, and endoplasmic reticulum.
2. Modifications of cells are discussed to allow specialized functions. Examples given are red blood cells for oxygen transport, root hair cells for water absorption, and xylem vessels for water conduction.
3. Cells are organized into tissues, organs and systems to allow the functioning of multicellular organisms. Not all organisms are multicellular - some like amoebas are unicellular.
This document summarizes key aspects of cell structure and organization. It begins by outlining common traits of cells, such as the presence of a cell membrane and cytoplasm in all cells. It then compares differences in cell size, shape, and types (prokaryotic vs. eukaryotic). The remainder of the document details the structure and function of various cell organelles, including the nucleus, chloroplasts, mitochondria, ribosomes, endoplasmic reticulum, Golgi bodies, vacuoles, and lysosomes. It concludes by contrasting the characteristics of plant and animal cells.
1. The document summarizes key concepts about cell structure from chapters 4.1 to 4.7, including the definition of a cell, components of prokaryotic and eukaryotic cells, and structures like the cell membrane, nucleus, and organelles.
2. It describes the use of microscopes to study cells too small to see with the naked eye, and the distinguishing features of plant, animal, and bacterial cells.
3. The lipid bilayer and fluid mosaic models of the cell membrane are introduced, as well as membrane proteins that transport molecules, act as receptors, and mark cell identity. Bacteria and archaea typically lack internal membranes but have diverse shapes and lifestyles.
This document provides information about plant and animal cells. It defines cells as the basic unit of life and discusses their components. Plant and animal cells are both eukaryotic but differ in some organelles. A plant cell contains a cell wall, chloroplasts, and a large central vacuole. An animal cell lacks a cell wall and has smaller vesicles instead of a vacuole. Both contain a cell membrane, nucleus, mitochondria, endoplasmic reticulum, Golgi bodies, ribosomes, and cytoplasm. The document compares and contrasts the structures of plant and animal cells through diagrams and a Venn diagram.
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This document discusses cell structure and organization. It defines key terms like organelle, cell membrane, nucleus, cytoplasm and compares typical plant and animal cells. It explains how cell structure relates to function in cells like root hair cells, xylem vessels and red blood cells. Finally, it describes how cells work together to form tissues, organs and organ systems within multicellular organisms.
The document provides an overview of cell structure and function at different levels of magnification. It discusses how microscopes are used to visualize cells and cellular structures. Key organelles like the nucleus, endoplasmic reticulum, mitochondria, Golgi apparatus, lysosomes, and ribosomes are examined. The roles of the plasma membrane, endomembrane system, and genetic material housed in the nucleus are also summarized. Cell fractionation techniques are described which separate cell components based on size and density to isolate organelles for further study.
1. The document discusses cell structures and functions. It outlines the cell theory which states that all living things are made of cells, cells are the basic unit of structure and function, and new cells are produced from existing cells.
2. The structures of eukaryotic cells are described including the cell membrane, nucleus, cytoplasm, mitochondria, endoplasmic reticulum, Golgi bodies, lysosomes, and ribosomes. Plant cell structures like the cell wall and chloroplasts are also outlined.
3. The key differences between plant and animal cells and between prokaryotic and eukaryotic cells are summarized.
Eukaryotic cells have a membrane-bound nucleus and organelles, unlike prokaryotic cells. Organelles include the mitochondria, which generates energy for the cell, and chloroplasts in plant cells, which perform photosynthesis. The endosymbiotic theory proposes that organelles like mitochondria and chloroplasts originally came from prokaryotic cells engulfed by larger cells during evolution. Eukaryotic cells are generally larger than prokaryotic cells and have complex internal structures suited to multicellular life.
The document discusses the history and discovery of cells, beginning with Hooke observing cork cells under a microscope in 1665. It then outlines the cell theory developed by Schleiden, Schwann, and Virchow stating that all living things are composed of cells, cells are the basic unit of life, and all cells come from preexisting cells. The document also examines cell diversity in terms of size, shape, internal structures between prokaryotic and eukaryotic cells, and the functions of key cellular organelles.
This document provides an overview of cell structure and function. It begins with the cell theory and key discoveries in cell biology. The main parts of prokaryotic, plant, and animal cells are described along with their functions. Key differences between prokaryotic and eukaryotic cells, and plant and animal cells, are highlighted. Important cellular structures like the nucleus, mitochondria, chloroplasts, and cell membrane are explained. The document concludes with a discussion of the secretory pathway and defines important cellular terms.
The document discusses cells and cellular structures. It begins by stating that all living things are made up of cells, and that some organisms are single-celled while others are multicellular. It then provides section outlines on topics like cell theory, prokaryotic and eukaryotic cells, eukaryotic cell structures, cell boundaries, and the diversity of cellular life. Interactive elements like diagrams, activities, and videos are also included to illustrate key concepts.
1. The document discusses the fundamental unit of life - the cell. It describes key discoveries in cell biology including the invention of the microscope and the development of the cell theory.
2. The text outlines the basic structures of plant and animal cells including the cell membrane, nucleus, cytoplasm, and various organelles. It explains the functions of organelles such as the endoplasmic reticulum, Golgi apparatus, lysosomes, mitochondria, plastids, and vacuoles.
3. The document compares prokaryotic and eukaryotic cells and provides examples of unicellular and multicellular organisms. It also includes review questions related to cell structures and processes such as diffusion, osm
Eukaryotic cell structures for Advanced BiologyStephanie Beck
The document provides information about the organelles and structures found within eukaryotic cells. It begins by describing the nucleus, which contains the cell's DNA and controls most cell functions. It then discusses other major cell structures involved in protein production and transport, including ribosomes, the endoplasmic reticulum, Golgi apparatus, and cell membrane. It explains that these structures make up the endomembrane system, whose primary role is protein production and secretion. The document also mentions other organelles like mitochondria, chloroplasts, lysosomes, and vacuoles, as well as cytoskeletal structures.
The document summarizes cellular structures and functions. It describes some of the key organelles in plant and animal cells, including the nucleus that houses DNA, the endoplasmic reticulum that synthesizes proteins and lipids, and mitochondria that generate energy. It also discusses differences in prokaryotic and eukaryotic cells, as well as structures like the cell membrane, chloroplasts, vacuoles, and cell walls.
The document discusses cellular structure and function. It covers the history of cell discovery from Leeuwenhoek to Virchow. It describes the key components of prokaryotic and eukaryotic cells including the cell membrane, nucleus, organelles, and differences between plant and animal cells. It also explains different types of cellular transport mechanisms like diffusion, osmosis, facilitated diffusion, and active transport.
The cell membrane surrounds the cytoplasm of the cell and separates its contents from the external environment. It is a semi-permeable bilayer that regulates what enters and exits the cell through membrane proteins. The nucleus contains the cell's DNA and controls its metabolism and reproduction. Mitochondria have a double membrane and produce energy for the cell in the form of ATP through aerobic respiration. Ribosomes are sites of protein synthesis and consist of large and small subunits that can float freely in the cell or attach to the endoplasmic reticulum.
The cell (from Latin cella, meaning "small room") is the basic structural, functional, and biological unit of all known organisms. A cell is the smallest unit of life. Cells are often called the "building blocks of life". The study of cells is called cell biology, cellular biology, or cytology.
The ability to recreate computational results with minimal effort and actionable metrics provides a solid foundation for scientific research and software development. When people can replicate an analysis at the touch of a button using open-source software, open data, and methods to assess and compare proposals, it significantly eases verification of results, engagement with a diverse range of contributors, and progress. However, we have yet to fully achieve this; there are still many sociotechnical frictions.
Inspired by David Donoho's vision, this talk aims to revisit the three crucial pillars of frictionless reproducibility (data sharing, code sharing, and competitive challenges) with the perspective of deep software variability.
Our observation is that multiple layers — hardware, operating systems, third-party libraries, software versions, input data, compile-time options, and parameters — are subject to variability that exacerbates frictions but is also essential for achieving robust, generalizable results and fostering innovation. I will first review the literature, providing evidence of how the complex variability interactions across these layers affect qualitative and quantitative software properties, thereby complicating the reproduction and replication of scientific studies in various fields.
I will then present some software engineering and AI techniques that can support the strategic exploration of variability spaces. These include the use of abstractions and models (e.g., feature models), sampling strategies (e.g., uniform, random), cost-effective measurements (e.g., incremental build of software configurations), and dimensionality reduction methods (e.g., transfer learning, feature selection, software debloating).
I will finally argue that deep variability is both the problem and solution of frictionless reproducibility, calling the software science community to develop new methods and tools to manage variability and foster reproducibility in software systems.
Exposé invité Journées Nationales du GDR GPL 2024
This presentation explores a brief idea about the structural and functional attributes of nucleotides, the structure and function of genetic materials along with the impact of UV rays and pH upon them.
Nucleophilic Addition of carbonyl compounds.pptxSSR02
Nucleophilic addition is the most important reaction of carbonyls. Not just aldehydes and ketones, but also carboxylic acid derivatives in general.
Carbonyls undergo addition reactions with a large range of nucleophiles.
Comparing the relative basicity of the nucleophile and the product is extremely helpful in determining how reversible the addition reaction is. Reactions with Grignards and hydrides are irreversible. Reactions with weak bases like halides and carboxylates generally don’t happen.
Electronic effects (inductive effects, electron donation) have a large impact on reactivity.
Large groups adjacent to the carbonyl will slow the rate of reaction.
Neutral nucleophiles can also add to carbonyls, although their additions are generally slower and more reversible. Acid catalysis is sometimes employed to increase the rate of addition.
Deep Behavioral Phenotyping in Systems Neuroscience for Functional Atlasing a...Ana Luísa Pinho
Functional Magnetic Resonance Imaging (fMRI) provides means to characterize brain activations in response to behavior. However, cognitive neuroscience has been limited to group-level effects referring to the performance of specific tasks. To obtain the functional profile of elementary cognitive mechanisms, the combination of brain responses to many tasks is required. Yet, to date, both structural atlases and parcellation-based activations do not fully account for cognitive function and still present several limitations. Further, they do not adapt overall to individual characteristics. In this talk, I will give an account of deep-behavioral phenotyping strategies, namely data-driven methods in large task-fMRI datasets, to optimize functional brain-data collection and improve inference of effects-of-interest related to mental processes. Key to this approach is the employment of fast multi-functional paradigms rich on features that can be well parametrized and, consequently, facilitate the creation of psycho-physiological constructs to be modelled with imaging data. Particular emphasis will be given to music stimuli when studying high-order cognitive mechanisms, due to their ecological nature and quality to enable complex behavior compounded by discrete entities. I will also discuss how deep-behavioral phenotyping and individualized models applied to neuroimaging data can better account for the subject-specific organization of domain-general cognitive systems in the human brain. Finally, the accumulation of functional brain signatures brings the possibility to clarify relationships among tasks and create a univocal link between brain systems and mental functions through: (1) the development of ontologies proposing an organization of cognitive processes; and (2) brain-network taxonomies describing functional specialization. To this end, tools to improve commensurability in cognitive science are necessary, such as public repositories, ontology-based platforms and automated meta-analysis tools. I will thus discuss some brain-atlasing resources currently under development, and their applicability in cognitive as well as clinical neuroscience.
ANAMOLOUS SECONDARY GROWTH IN DICOT ROOTS.pptxRASHMI M G
Abnormal or anomalous secondary growth in plants. It defines secondary growth as an increase in plant girth due to vascular cambium or cork cambium. Anomalous secondary growth does not follow the normal pattern of a single vascular cambium producing xylem internally and phloem externally.
DERIVATION OF MODIFIED BERNOULLI EQUATION WITH VISCOUS EFFECTS AND TERMINAL V...Wasswaderrick3
In this book, we use conservation of energy techniques on a fluid element to derive the Modified Bernoulli equation of flow with viscous or friction effects. We derive the general equation of flow/ velocity and then from this we derive the Pouiselle flow equation, the transition flow equation and the turbulent flow equation. In the situations where there are no viscous effects , the equation reduces to the Bernoulli equation. From experimental results, we are able to include other terms in the Bernoulli equation. We also look at cases where pressure gradients exist. We use the Modified Bernoulli equation to derive equations of flow rate for pipes of different cross sectional areas connected together. We also extend our techniques of energy conservation to a sphere falling in a viscous medium under the effect of gravity. We demonstrate Stokes equation of terminal velocity and turbulent flow equation. We look at a way of calculating the time taken for a body to fall in a viscous medium. We also look at the general equation of terminal velocity.
The binding of cosmological structures by massless topological defectsSérgio Sacani
Assuming spherical symmetry and weak field, it is shown that if one solves the Poisson equation or the Einstein field
equations sourced by a topological defect, i.e. a singularity of a very specific form, the result is a localized gravitational
field capable of driving flat rotation (i.e. Keplerian circular orbits at a constant speed for all radii) of test masses on a thin
spherical shell without any underlying mass. Moreover, a large-scale structure which exploits this solution by assembling
concentrically a number of such topological defects can establish a flat stellar or galactic rotation curve, and can also deflect
light in the same manner as an equipotential (isothermal) sphere. Thus, the need for dark matter or modified gravity theory is
mitigated, at least in part.
hematic appreciation test is a psychological assessment tool used to measure an individual's appreciation and understanding of specific themes or topics. This test helps to evaluate an individual's ability to connect different ideas and concepts within a given theme, as well as their overall comprehension and interpretation skills. The results of the test can provide valuable insights into an individual's cognitive abilities, creativity, and critical thinking skills
Remote Sensing and Computational, Evolutionary, Supercomputing, and Intellige...University of Maribor
Slides from talk:
Aleš Zamuda: Remote Sensing and Computational, Evolutionary, Supercomputing, and Intelligent Systems.
11th International Conference on Electrical, Electronics and Computer Engineering (IcETRAN), Niš, 3-6 June 2024
Inter-Society Networking Panel GRSS/MTT-S/CIS Panel Session: Promoting Connection and Cooperation
https://www.etran.rs/2024/en/home-english/
Travis Hills' Endeavors in Minnesota: Fostering Environmental and Economic Pr...Travis Hills MN
Travis Hills of Minnesota developed a method to convert waste into high-value dry fertilizer, significantly enriching soil quality. By providing farmers with a valuable resource derived from waste, Travis Hills helps enhance farm profitability while promoting environmental stewardship. Travis Hills' sustainable practices lead to cost savings and increased revenue for farmers by improving resource efficiency and reducing waste.
Travis Hills' Endeavors in Minnesota: Fostering Environmental and Economic Pr...
7th biology preview
1. 1. A(n) _____ is the
• smallest unit that
• can perform all life
• processes.
• (core Biology 1.3)
• a. cell
• b. tissue
• c. organ
• d. organ system
2. Standards 8.5.2 & 8.5.3
Bert wants to paint his garage with two coats of a special preservative
paint. The dimensions of his garage is given below. Each quart of
paint will cover 7 square meters of area and costs 8.50 per quart.
2. (1pt) What is the area of Bert’s garage that will be painted?
3. (1pt) What is the minimum number of quarts of paint Bert will need?
4. (1pt) How much will it cost to paint Bert’s garage?
Area triangle = ½ b h A = w x l
3. BACTERIA A DIVIDES EVERY 20 MINUTES. BACTERIA
B DIVIDES AT A FASTER RATE.
AT THE END OF ONE HOUR THERE ARE 50% MORE
BACTERIA B THAN BACTERIA A. 5. (1PT) HOW MANY
BACTERIUM B ARE THERE? (7.NS.5 & 7.NS.8)
4. 7.3.1 Explain that all living organisms
are composed of one cell or multiple
cells and that the many functions
needed to sustain life are carried out
within cells.
7.3.3 Explain that, although the way
cells function is similar in all living
organisms, multicellular organisms
have specialized cells whose
specialized functions are directly
related to their structure.
5. 7.3.4 Compare and contrast
similarities and differences among
specialized sub cellular
components within plant and
animal cells (including organelles
and cell walls
6. Cell – the smallest un i t
that can perform all
life’s processes
7. Cell theory
1. All living things are made of
one or more cells
2. Cells are the basic units of
structure and function
in organisms
3. All cells arise
from existing
cells
8. Two types of Cells
1. Prokaryote –lacks a nucleus and other
internal compartments DNA is a
single loop have a cell wall
bacteria
Flagellum allows
Bacteria to move
9. 2. Eukaryotic Cell – c e ll with a nucleus
have organelles
Plant & animal
cells
12. Organelle – one of small bodies in a
cell’s cytoplasm that are specialized to
perform a specific function
13. Nucleus –the organelle that contains the
cell’s DNA and is the control center of the
cell – found in nuclear membrane
DNA – the genetic material you inherit
from your parents - contains
information that controls
your traits
(eye color, hair color etc. )
codes for proteins
DNA located on
chromosomes
14. 1. (1pt) What is the only organelle found
inside of the nuclear membrane?
a. Mitochondria
b. Nucleus
c. Lysosome
d. ribosome
15. Standards 8.5.2 & 8.5.3
Bert wants to paint his garage with two coats of a special preservative
paint. The dimensions of his garage is given below. Each quart of
paint will cover 6 square meters of area and costs $7.50 per quart.
2. (1pt) What is the area of Bert’s garage that will be painted?
3. (1pts) What is the minimum number of quarts of paint Bert will
need?
4. (1pts) How much will it cost to paint Bert’s garage?
Area triangle = ½ b h A = w x l
16. BACTERIA A DIVIDES EVERY 15 MINUTES. BACTERIA
B DIVIDES AT A SLOWER RATE.
AT THE END OF ONE HOUR THERE ARE 50% LESS
BACTERIA B THAN BACTERIA A. HOW MANY
BACTERIUM B ARE THERE? (7.NS.5 & 7.NS.8)
17. 7.3.1 Explain that all living organisms
are composed of one cell or multiple
cells and that the many functions
needed to sustain life are carried out
within cells.
7.3.3 Explain that, although the way
cells function is similar in all living
organisms, multicellular organisms
have specialized cells whose
specialized functions are directly
related to their structure.
18. 7.3.4 Compare and contrast
similarities and differences among
specialized sub cellular
components within plant and
animal cells (including organelles
and cell walls
19. Cell membrane – pro t ective barrier that
encloses a cell which separates the cell
from its environment – controls
movement of materials in and out of
cell
20. Mitochondria – orga n elle that breaks
down food to make energy for the cell
Mitochondria has own DNA which is
inherited from mother
21. Cellular respiration takes place in mitochondria
Sugar + oxygen → energy (ATP) + carbon dioxide + water
Cellular Respiration
22. Cytoplasm – the fluid inside the
cell – includes all organelles
except nucleus
23. Endoplasmic Reticulu m (ER) – system of
internal membranes that move proteins
and other substances through the cell
24. Golgi apparatus – membrane-bound sacs
that serves as a packaging and
distribution center for proteins they receive
from the ER.
25. lysosome A membrane-bounded organelle which
contains digestive enzymes. It acts as the "garbage
disposal" of the cell by breaking down cell components
that are no longer needed as well as molecules or even
bacteria that are ingested by the cell.
28. Plant cells have all the structures that
animal cells have plus 3 structures that
animal cells do not have
cell wall
chloroplast
29. Plant cells have 3 structures that
animal cells do not
1. cell wall
a rigid structure that
surrounds the cell membrane
and provides support for
the
cell
30. Plant cells have 3 structures that animal
cells do not
2. Chloroplast – organelle where
photosynthesis takes place
Chlorophyll – the green pigment inside
the chloroplast that traps the sun’s
energy for use in photosynthesis
31. 1. (1pt) The _____is the cellular organelle
that converts food into a form of
energy the cell can use. (core std. B
1.3)
a. nucleolus b. mitochondrion
c. ribosome d. chloroplast
32. Standards 8.5.2 & 8.5.3
Bert wants to paint his garage with two coats of a special preservative
paint. The dimensions of his garage is given below. Each quart of
paint will cover 8 square meters of area and costs 10.50 per quart.
2. (1pt) What is the area of Bert’s garage that will be painted?
3. (2pts) What is the minimum number of quarts of paint Bert will
need?
4. (2pts) How much will it cost to paint Bert’s garage?
Area triangle = ½ b h A = w x l
33. BACTERIA A DIVIDES EVERY 15 MINUTES. BACTERIA
B DIVIDES AT A FASTER RATE.
AT THE END OF ONE HOUR THERE ARE 75% MORE
BACTERIA B THAN BACTERIA A. HOW MANY
BACTERIUM B ARE THERE? (7.NS.5 & 7.NS.8)
34. 7.3.1 Explain that all living organisms
are composed of one cell or multiple
cells and that the many functions
needed to sustain life are carried out
within cells.
7.3.3 Explain that, although the way
cells function is similar in all living
organisms, multicellular organisms
have specialized cells whose
specialized functions are directly
related to their structure.
35. 7.3.2 Understand tha t water is a major
component within all cells and is
required to carry out many cellular
functions.
36. Cell membrane – a phospholipid layer
that covers a cell’s surface and acts as
a barrier between the inside of a cell
and the cells environment
37. PHOSPHOLIPID is a lipid that contains phosphorous
and is a structural component of the cell membrane
LIPID a type of biochemical that does not dissolve in water (fats and
steroids)
Fats store energy
38. Phospholipid – a lipid made of a phosphate
group and 2 fatty acids
Lipid bilayer – basic structure of membrane
composed of 2 layers of phospholipids
polar – attracted to water
nonpolar – repelled by water
39. The arrangement of the phospholipids in
the lipid bilayer makes the cell membrane
selectively permeable
40. DIFFUSION movement of high concentration to low
`concentration Allows materials to move in and out of cell
http://www.biosci.ohiou.edu/introbioslab/Bios170/diffusion/Diffusion.html
Untitled Document
OSMOSIS diffusion of water
Important because cells are mostly water (down concentration gradient)
41. Water will move from high concentration of WATER to
low concentration of WATER. Put a cell in pure
water- water will move into the cell causing it to swell
42.
43. During passive transport (facilitated diffusion) particles
are moved across the cell membrane through ion
channels
Carrier protein – binds to a molecule allowing
molecules (sugars) to pass
44. 1. (1pt) A bacterium that lost its flagella
would be unable to ___. (7.3.1)
a. move
b. divide
c. make proteins
d. maintain its shape
45. Standards 8.5.2 & 8.5.3
Bert wants to paint his garage with two coats of a special preservative
paint. The dimensions of his garage is given below. Each quart of
paint will cover 5 square meters of area and costs 9.50 per quart.
2. (1pt) What is the area of Bert’s garage that will be painted?
3. (1pt) What is the minimum number of quarts of paint Bert will need?
4. (1pt) How much will it cost to paint Bert’s garage?
Area triangle = ½ b h A = w x l
46. BACTERIA A DIVIDES EVERY 10 MINUTES. BACTERIA
B DIVIDES AT A SLOWER RATE.
AT THE END OF ONE HOUR THERE ARE 50% LESS
BACTERIA B THAN BACTERIA A. 5. (1PT) HOW MANY
BACTERIUM B ARE THERE? (7.NS.5 & 7.NS.8)
47. 7.3.1 Explain that all living organisms
are composed of one cell or multiple
cells and that the many functions
needed to sustain life are carried out
within cells.
7.3.3 Explain that, although the way
cells function is similar in all living
organisms, multicellular organisms
have specialized cells whose
specialized functions are directly
related to their structure.
48. 7.3.7 Describe how various organs and
tissues serve the needs of cells for
nutrient and oxygen delivery and waste
removal.
49.
50. process in which cell membrane surrounds
and encloses large particle to bring into cell
54. Sodium-potassium pump is one of the most important
active transport systems in cell. Sodium pumped out
of cell against gradient potassium pumped into cell
against gradient cells use to keep potassium in cell
and get rid of sodium
55. PASSIVE AND ACTIVE TRANSPORT
Animations
javascript:changePages('dif_mov.htm','dif_text1.htm');
the movement of materials across the movement of materials
across
cell membrane without using cell membrane that uses
energy energy (ATP)
Concepts in Biochemistry - Interactive Animations
56. Receptor proteins in the cell membrane
bind to signal molecules in the blood
stream which allows the cell to respond
to signals from other cells in the body
57. Cilia or flagella – hair like structures that allow one
celled Protista (protists) to move
Protists – are eukaryotes that are not plant, animal
or fungi
58. 1. (1pt) I am the barrier between the
inside and the outside of the cell.
I allow food, oxygen, and
other needed materials
to enter the cell. I am
a part of animal and
plant cells. What am I?
(core Biology B 1.2)
a. cell membrane b. cell wall
c. cytoplasm d. lipid bilayer
59. Standards 8.5.2 & 8.5.3
Bert wants to paint his garage with two coats of a special preservative
paint. The dimensions of his garage is given below. Each quart of
paint will cover 6 square meters of area and costs 11.50 per quart.
2. (1pt) What is the area of Bert’s garage that will be painted?
3. (2pts) What is the minimum number of quarts of paint Bert will
need?
4. (2pts) How much will it cost to paint Bert’s garage?
Area triangle = ½ b h A = w x l
60. BACTERIA A DIVIDES EVERY 10 MINUTES. BACTERIA
B DIVIDES AT A SLOWER RATE.
AT THE END OF TWO HOURS THERE ARE 50% LESS
BACTERIA B THAN BACTERIA A. 5. (1PT) HOW MANY
BACTERIUM B ARE THERE? (7.NS.5 & 7.NS.8)
61. 6. (1PT) Which is true of
scientific theories? ( std.
7.NS.1)
a. they are replaceable
b. the are unchangeable
c. they are unchallenged
d. they are guesses
62. 7.3.6 Explain that after fertilization a small
cluster of cells divides to form the basic
tissues of an embryo and further develops
into all the specialized tissues and organs
within a multicellular organism.
63. GREGOR MENDEL the
father of genetics
Mendel discovered the
principles of heredity while
studying pea plants
• mendel
65. HEREDITY – passing traits from parent to offspring
↓
GREGOR MENDEL – discovered principles of
heredity while studying pea plants
↓
used pea plants because they were self-pollinating
↓
SELF-POLLINATING – plants have both female and
male parts (can fertilize itself)
↓
self-pollinating plant leads to true breeding plant
(purebred)
↓
66. TRUE BREEDING PLANT – one where all the offspring
have same characteristics as parent
↓
CHARACTERISTIC – is a feature that has different
forms
↓
TRAITS – the different forms of a characteristic
68. MENDEL’S first experiment
(crossed true breeding plants
with different traits
)
Mendel's Peas
http://www2.edc.org/weblabs/Mendel/MendelMenu.html
69. Mendel used true-breeding plants
for seven characteristics
(in this case
seed shape)
Mendel's Peas
http://www2.edc.org/weblabs/Mendel/MendelMenu.html
Process called
Selective breeding
70. RATIO –is a relationship between two
numbers Continuum Javascript Ratio Calculator
Of the 7 characteristics Mendel
studied there was a fixed ratio
between the recessive and
dominant trait in the 2nd generation
71.
72. 1. (1pt) Which of the following scientists
discovered the principles of heredity by
studying pea plants. (std. 8.3.3)
a. Charles Darwin
b. Louis Pasteur
c. Gregor Mendel
d. Marie Curie
e. Leroy Jenkins!!!!
73. Standards 8.5.2 & 8.5.3
Bert wants to paint his garage with two coats of a special preservative
paint. The dimensions of his garage is given below. Each quart of
paint will cover 6 square meters of area and costs 11.50 per quart.
2. (1pt) What is the area of Bert’s garage that will be painted?
3. (1pt) What is the minimum number of quarts of paint Bert will need?
4. (1pt) How much will it cost to paint Bert’s garage?
Area triangle = ½ b h A = w x l
74. BACTERIA A DIVIDES EVERY 30 MINUTES. BACTERIA
B DIVIDES AT A FASTER RATE.
AT THE END OF THREE HOURS THERE ARE 50% MORE
BACTERIA B THAN BACTERIA A. 5. (1PT) HOW MANY
BACTERIA B ARE THERE? (7.NS.5 & 7.NS.8)
75. 7.3.6 Explain that after fertilization a small
cluster of cells divides to form the basic
tissues of an embryo and further develops
into all the specialized tissues and organs
within a multicellular organism.
76. MENDEL’S first experiment
(crossed true breeding plants
with different traits
)
Mendel's Peas
http://www2.edc.org/weblabs/Mendel/MendelMenu.html
77. Mendel used true-breeding plants
for seven characteristics
(in this case
seed shape)
Mendel's Peas
http://www2.edc.org/weblabs/Mendel/MendelMenu.html
Process called
Selective breeding
78. RATIO –is a relationship between two
numbers Continuum Javascript Ratio Calculator
Of the 7 characteristics Mendel
studied there was a fixed ratio
between the recessive and
dominant trait in the 2nd generation
79.
80. 1st experiment
Mendel crossed true-breeding
purple flower with true-breeding
white flower
81. This cross called
First generation plants
All first generation plants had
purple flowers. White flowers
disappeared in 1st generation
82. The trait that appeared in the 1st
generation was DOMINANT
The trait that disappeared in 1st
generation was RECESSIVE
83. Mendel used true-breeding plants
for seven characteristics
(in this case
seed shape)
Mendel's Peas
http://www2.edc.org/weblabs/Mendel/MendelMenu.html
Process called
Selective breeding
84. A dominant trait (alleles) always shows up in the
organism when that trait (alleles) is present
A recessive trait (allele) is hidden whenever the
dominant allele is present
85. Identify and describe the difference
between inherited traits and the
physical and behavioral traits that
are acquired or learned.
Giant Redwoods
86. A cquired traits
manners
hair style
language
scars
Inherited traits
eye color
hair color
blood type
dimples Liger