Biology 1.3
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Biology is the science that seeks to understand the living world. Cells are the basic unit of life, enclosed by a barrier that separates it from its surroundings. Homeostasis is the process by which organisms maintain a stable internal environment. Sexual reproduction involves cells from two parents uniting to form the first cell of a new organism, while asexual reproduction involves a single parent reproducing alone. Metabolism is the set of chemical reactions through which an organism carries out life processes like building and breaking down materials. A stimulus is a signal to which an organism responds.
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6. List all materials and equipment used in the procedures section.
7. Record step-by-step methods and procedures used clearly and concisely.
8. Note any observations, data, and results systematically in tables or graphs as applicable.
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"Here are the steps to properly set up and maintain a lab notebook:
1. Get a bound notebook with numbered pages. This helps ensure pages aren't removed or replaced.
2. Date each entry and include your name and any lab partners or group members.
3. Clearly state the purpose or problem being investigated.
4. Note any relevant background information or research.
5. State your hypothesis or prediction of what will occur.
6. List all materials and equipment used in the procedures section.
7. Record step-by-step methods and procedures used clearly and concisely.
8. Note any observations, data, and results systematically in tables or graphs as applicable.
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3) Common characteristics include the ability to reproduce, grow, develop and change over time, respond to their environment, maintain homeostasis, obtain and use energy, and pass genetic information between generations.
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Katari LebronStudent ID# AC1206834SC160.3.1 Basic BiologyAss.docx
Katari Lebron
Student ID# AC1206834
SC160.3.1 Basic Biology
Assignment 3_03
08/25/14
TITLE: Discuss the properties of life, basic chemical terminology, and molecules and compounds of a cell necessary for life.
Biology is the scientific study of life. It’s a subject that enormous scope and increases all the time. Which leads to many questions like: What is life? Or, let me put it to you this way, what distinguishes living things from non-living? Properties of Life: All living organisms share several key characteristics and/or function. Here you will find seven properties of life: order, response to the environment, reproduction, growth and development, regulation, homeostasis, and energyprocessing. If we analyze these seven characteristics we realize that it serves to define life. I’m going to start off by showing you what each property represents and the important role it plays in life.
(1).Order. Organisms are highly organized, coordinated structures that consist of one or more cells. Even very simple, single-celled organisms are remarkably complex: inside each cell, atoms make up molecules; these in turn make up cell organelles and other cellular inclusions. In multicellular organisms, similar cells form tissues. Tissues, in turn, collaborate to create organs (body structures with a distinct function). Organs work together to form organ systems. (2).
Response to the environment. Organisms can respond to diverse stimuli. For example, plants can grow toward a source of light, climb on fences and walls, or respond to touch. Even tiny bacteria can move toward or away from chemicals (a process called chemo taxis) or light (photo taxis). Movement toward a stimulus is considered a positive response, while movement away from a stimulus is considered a negative response. (3). Reproduction. Single-celled organisms reproduce by first duplicating their DNA. They then divide it equally as the cell prepares to divide to form two new cells. Multicellular organisms often produce specialized reproductive germ line cells that will form new individuals. When reproduction occurs, genes containing DNA are passed along to an organism's offspring. These genes ensure that the offspring will belong to the same species and will have similar characteristics, such as size and shape. (4). Growth and Development. All organisms grow and develop following specific instructions coded for by their genes. These genes provide instructions that will direct cellular growth and development, ensuring that a species' young will grow up to exhibit many of the same characteristics as its parents. (5).Regulation. Even the smallest organisms are complex and require multiple regulatory mechanisms to coordinate internal functions, respond to stimuli, and cope with environmental stresses. Two examples of internal functions regulated in an organism are nutrient transport and blood flow. Organs (groups of tissues working together) perform specific functions, such as carrying oxygen ...
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2) While all life shares common characteristics, there is tremendous diversity among organisms. These can be classified into the domains of Archaea, Bacteria, and Eukarya. Eukaryotes include protists, fungi, plants, and animals.
3) Understanding life requires studying both its underlying unity across all organisms as well as the variation between different forms of life. Classification systems help organize our understanding of life's diversity.
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The document summarizes key concepts from the first chapter of a biology textbook, including:
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2) All living things require energy and nutrients, share characteristics like DNA and homeostasis, and can be classified as producers, consumers, protists, fungi, plants or animals.
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The document outlines 10 unifying themes in biology:
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2. New properties emerge at each level of the biological hierarchy from atoms to biosphere.
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1. The document provides an overview of key biological concepts and principles, including the origin of biology from ancient Greek philosophers like Aristotle and scientists like Darwin.
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Introduction to Cell biology
introduction to cell biology
Cell Biology
The cell is a chemical system that can maintain its structure and reproduce.
Cells are the fundamental unit of life.
All living things are cells or composed of cells.
The interior contents of cells in the cytoplasm
The cell is a chemical system that can maintain its structure and reproduce.
Cells are the fundamental unit of life.
All living things are cells or composed of cells.
The interior contents of cells in the cytoplasm.
Cell, in biology, the basic membrane-bound unit that contains the fundamental molecules of life and of which all living things are composed.
A single cell is often a complete organism in itself, such as a bacterium or yeast.
Other cells acquire specialized functions as they mature.
These cells cooperate with other specialized cells and become the building blocks of large multicellular organisms, such as humans and other animals.
The smallest known cells are a group of tiny bacteria called mycoplasmas; some of these single-celled organisms are spheres as small as 0.2 μm in diameter.
Largest cell ….
The largest single-celled organism is an animal
called Syringammina fragilissima, which can grow to a width of 4 inches.
– are highly folded, forming a complex network of tubes.
The biological science which deals with the study of structure, function, molecular organization, growth, reproduction, and genetics of the cells, is called cytology or cell biology
(Gr., kytos = hollow vessel or cell; logos = to discourse).
Much of cell biology is devoted to the study of structures and functions of specialized cells.
Individual cells that form our bodies can grow, reproduce, process information, respond to stimuli, and carry out an amazing array of chemical reactions.
CVA Biology I - B10vrv3074
1. Unicellular organisms maintain homeostasis through processes like growth, responding to the environment, transforming energy, and reproduction.
2. In multicellular organisms, cells become specialized to perform different tasks and communicate with each other to maintain homeostasis, similar to how baseball team members work together.
3. Cells are organized into tissues, organs, and organ systems that allow for division of labor and maintenance of homeostasis across the entire organism.
Biology as the Study of Life
The document provides information on key biology concepts across multiple levels of organization:
- Cells are the basic unit of structure and function in living things, and come in two main types - prokaryotic and eukaryotic.
- Organisms are made of tissues, organs and organ systems that work together to carry out essential functions.
- Populations of the same species interact with other populations and communities of organisms within an ecosystem, all of which make up the biosphere.
Biology - What you absolutely must know to pass the living environment regents
This document provides an overview of key concepts needed to pass the New York State Living Environment/Biology Regents exam. It covers the scientific method, characteristics of living things, cells, homeostasis, and human body systems. Some of the main points discussed include the definitions of observations, inferences, hypotheses and theories; the components of a controlled experiment; the basic functions of living things like nutrition, transport and regulation; and how cells, tissues, organs and organ systems work together to maintain homeostasis in the human body.
CVA Biology I - B10vrv1013
The document discusses key aspects of studying life through biology. It outlines several characteristics shared by all living things, such as being made of cells, growing and developing, responding to stimuli, reproducing, maintaining homeostasis, obtaining and using energy, evolving over time, and consisting of a universal genetic code. It also examines major fields and concepts in biology like ecology, biotechnology, and molecular and genomic studies. The metric system and safety procedures are highlighted as important aspects of performing biological investigations and experiments.
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There are 7 characteristics of life:
1. Organization - Living things have cells organized into tissues, organs, and organ systems.
2. Homeostasis - Organisms maintain internal conditions like temperature and pH within a narrow range.
3. Metabolism - Living things undergo chemical reactions and exchanges with the environment.
4. Reproduction - Organisms reproduce through processes like cell division or sexual reproduction to pass genes to offspring.
5. Growth and development - Genes direct cellular growth and development ensuring offspring resemble parents.
6. Response to stimuli - Organisms respond and move toward or away from stimuli like light, chemicals, and touch.
7. Evolution - Living things evolve over time to
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Biology
The document discusses biology and its branches. It begins by defining biology as the study of life, including the structure, function, growth, evolution, distribution, and taxonomy of living organisms. Modern biology is broad and composed of many branches and subdisciplines, but it is unified by concepts like recognizing the cell as the basic unit of life and evolution as driving the creation of new species. The hierarchy of biological organization extends from atoms to entire biospheres. Some key branches of biology mentioned include anatomy, ecology, genetics, microbiology, and zoology.
Properties_of_Life.pdf
1. Biology is the science that studies life and living organisms. It examines the cell, the basic unit of life, as well as levels of organization above the cell including tissues, organs, organ systems, organisms, populations, communities, and ecosystems.
2. All living things share two main characteristics - they require energy and contain DNA. Energy is required for functions like growth, development, reproduction, and homeostasis. DNA contains instructions that pass from parents to offspring and allow for inheritance, development, and growth.
3. The main levels of biological organization are the cell, tissue, organ, organ system, organism, population, community, and ecosystem. Ecosystems are controlled by energy flow and nutrient cycling between organisms
Biology introduction
This document provides an overview of key concepts in biology, including the characteristics of life, levels of biological organization, scientific classification, and the scientific method. It discusses that all living things share characteristics like organization, metabolism, growth, response to stimuli, reproduction, and homeostasis. It also summarizes the hierarchical classification system used in biology and outlines the domains, kingdoms, and scientific naming conventions. Finally, it briefly introduces concepts like ecosystems, biodiversity, and the process of scientific inquiry.
General Biology 1- An Introduction.pptx
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introductiontolifescience-180920034752.pdf
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2. Exploring theories on the origin of life from spontaneous generation to the Miller-Urey experiment.
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Biology 1.3
- 2. Biology Science that seeks to understand the living world.
- 3. Cell Collection of living matter enclosed by a barrier that separates the cell from its surroundings; basic unit of all forms of life.
- 4. Homeostasis Process by which organisms maintain a relatively stable internal environment.
- 5. Sexual Reproduction Process by which cells from two different parents unite to produce the first cell of a new organism.
- 6. Asexual Reproduction Process by which a single parent reproduces by itself.
- 7. Metabolism Set of chemical reactions through which an organism builds up or breaks down materials as it carries out its life processes.
- 8. Stimulus A signal to which an organism responds.
- 9. Key Concept What are some characteristics of the living things? Living things share the following characteristics: Made up of units called cells Reproduce Based on a universal genetic code Grow and develop Obtain and use materials and energy Respond to their environment Maintain a stable internal environment Taken as a group, living things change over time
- 10. Key Concept How can life be studied at different levels? Some of the levels at which life can be studied include molecules, cells, organisms, populations of a single kind of organism, communities of different organisms in an area, and the biosphere. At all these levels, smaller living systems are found within larger systems.