Char of life.2012
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Power Point presentation for middle school life science students. Characteristics that living things share are listed with images
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Characteristics Of Life
This is a presentation on the Characteristics of Life I put together for my 7th grade life science class.
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The document summarizes a biology lesson on homeostasis and transport. It discusses three types of passive transport - osmosis, diffusion, and facilitated diffusion. It defines osmosis as the movement of water across a membrane towards an area of higher water concentration without needing energy. Diffusion is the movement of molecules from an area of higher to lower concentration. Facilitated diffusion uses protein carriers. Active transport uses energy to move molecules against a concentration gradient, such as the sodium-potassium pump moving sodium out of cells and potassium in. The lesson defines key terms and provides examples to distinguish the different transport mechanisms.
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The document outlines the agenda and objectives for a biology class lesson on homeostasis and transport. The lesson will define homeostasis, semi-permeable membranes, concentration, and equilibrium. It will describe the three types of passive transport that allow materials to move across the cell membrane without using energy: diffusion, facilitated diffusion, and osmosis. The class will review key biomolecules like carbohydrates, lipids, proteins, and nucleic acids.
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Characteristics of life
All living things exhibit six key characteristics: 1) organization, with levels ranging from cells to organ systems; 2) emergent properties at each level that allow more complex functions; 3) maintenance of homeostasis through responses to stimuli and adaptations; 4) reproduction, either asexually or sexually; 5) growth as cells divide and specialize; and 6) development of specific cellular functions. These characteristics distinguish living things from non-living systems.
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Characteristics Of Life
This is a presentation on the Characteristics of Life I put together for my 7th grade life science class.
Homeostasis and transport (part 2)
The document summarizes a biology lesson on homeostasis and transport. It discusses three types of passive transport - osmosis, diffusion, and facilitated diffusion. It defines osmosis as the movement of water across a membrane towards an area of higher water concentration without needing energy. Diffusion is the movement of molecules from an area of higher to lower concentration. Facilitated diffusion uses protein carriers. Active transport uses energy to move molecules against a concentration gradient, such as the sodium-potassium pump moving sodium out of cells and potassium in. The lesson defines key terms and provides examples to distinguish the different transport mechanisms.
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The document outlines the agenda and objectives for a biology class lesson on homeostasis and transport. The lesson will define homeostasis, semi-permeable membranes, concentration, and equilibrium. It will describe the three types of passive transport that allow materials to move across the cell membrane without using energy: diffusion, facilitated diffusion, and osmosis. The class will review key biomolecules like carbohydrates, lipids, proteins, and nucleic acids.
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The document outlines the key characteristics of life, including cellular organization, homeostasis, metabolism, growth and development, adaptation, response to stimuli, reproduction, and heredity. It explains that all living things share these characteristics and lists examples of each one. The document also discusses how organisms inherit genetic information from parents and how life is sustained through reproduction and development.
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All living things exhibit six key characteristics: 1) organization, with levels ranging from cells to organ systems; 2) emergent properties at each level that allow more complex functions; 3) maintenance of homeostasis through responses to stimuli and adaptations; 4) reproduction, either asexually or sexually; 5) growth as cells divide and specialize; and 6) development of specific cellular functions. These characteristics distinguish living things from non-living systems.
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3) Homeostasis - Living things maintain stable internal conditions even when the external environment changes.
4) Metabolism - Living things undergo chemical reactions to obtain and use energy.
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Characteristics of Life
"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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This document provides information about what defines something as living or not living. It lists six key characteristics of living things: cells, response to stimuli, homeostasis, reproduction, DNA, and metabolism. Non-living things are defined as lacking these traits. Examples are given for each characteristic, such as cells making up multicellular and unicellular organisms, and pupils responding to light levels. The document also briefly discusses ecology, taxonomy, and natural selection.
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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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This document discusses the key characteristics of life according to biology. It outlines the seven main properties of life - movement, reproduction, sensitivity, growth and development, respiration, excretion, and nutrition. It provides examples of how different organisms exhibit each property, such as perspiring and drinking water to maintain homeostasis. Additionally, it mentions other characteristics like cellular organization, heredity, death, and complexity as shared traits of living things. The purpose is to define life and how scientists can determine if something is living or nonliving based on these characteristics.
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Char of life.2012
- 1. We are all life scientists!
- 2. Chapter 1 What is Life? Key Questions: What are the Characteristics of Life? What do living things need to survive?
- 3. Chapter 1 What is Life? What are the Characteristics of Life? All living things share sixcharacteristics in combination.
- 4. These are human cheek cells. What kind of organism are you? Theyaremadeofcells! •An organism can be made of one single cell – unicellular. •Or many cells as the building blocks of a larger organism – multicellular. Human cheek cells 400x
- 5. Cellsaremadeofotherchemicals! • Proteins • Carbohydrates • Lipids • Nucleic Acids • Water • These compounds make up all known life.
- 7. Living things respond to surroundings. • Stimulus - a reaction to a change • Response – an action or behavior
- 8. Chapter 1 What is Life? Living things respond to surroundings. Adaptation - an inherited behavior or characteristic that enables an organism to survive & reproduce. This type of response takes a long time and many generations. Over time, adaptations are modified by natural selection.
- 9. Chapter 1 What is Life? Life is always changing….. On the level of DNA…… Change = Evolution
- 10. Living things grow and develop. Grow = larger Develop = more complex
- 11. Living organisms reproduce. 2 types: Sexual reproduction Asexual reproduction
- 12. What do living things need to survive? • Water • Food Autotroph/heterotroph • Living space • Stable internal conditions – homeostasis
- 13. Test Yourself on these questions… A Short Quiz: 1. What are the six characteristics of life? 2. What is homeostasis? What is an example of homeostasis? 3. Is a computer living? Why or why not? 4. Why is energy required by living things?