CHAPTER 3
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--Chapter 21
Homepage
Syllabus
Calendar
Course Tools
FAQs
Online Learning Center
PageOut
Chapters
--Introduction
--Chapter 1
--Chapter 23
--Chapter 3
--Chapter 4
--Chapter 6
--Chapter 10
--Chapter 15
--Chapter 16
--Chapter 18
--Chapter 19
--Chapter 20
--Chapter 21

Chapter 3--Matter, Energy, and Life

Questions for Review:

Matter, Energy, Life

    1. Define atom and element. Are these terms interchangeable?

    2. Your body contains vast numbers of carbon atoms. How is it possible that some of these carbon atoms may have been part of the body of a prehistoric creature?

    3. What are six characteristics of water that make it so valuable for living organisms and their environment?

    4. In the biosphere, matter follows a circular pathway while energy follows a linear pathway. Explain.

    5. The oceans store a vast amount of heat, but (except for climate moderation) this huge reservoir of energy is of little use to humans. Explain the difference between high-quality and low-quality energy.

    6. Ecosystems require energy to function. Where does this energy come from? Where does it go? How does the flow of energy conform to the laws of thermodynamics?

    7. Heat is released during metabolism. How is this heat useful to a cell and to a multicellular organism? How might it be detrimental, especially in a large, complex organism?

    8. Photosynthesis and cellular respiration are complementary processes. Explain how they exemplify the laws of conservation of matter and thermodynamics.

    9. What do we mean by carbon-fixation or nitrogen-fixation? Why is it important to humans that carbon and nitrogen be "fixed"?

    10. The population density of large carnivores is always very small compared to the population density of herbivores occupying the same ecosystem. Explain this in relation to the concept of an ecological pyramid.

    11. A species is a specific kind of organism. What general characteristics do individuals of a particular species share? Why is it important for ecologists to differentiate among the various species in a biological community?

 

Define:

Matter

Mass

Element

Atom

Molecule

Compound

The three states (phases) of matter

Organic compound

Inorganic compound

Fat, oil, wax - lipid

Carbohydrate – sugar, starch, glycogen

Protein –

Amino acid

Nucleic acid

DNA

RNA

Cell

Cell membrane

Enzyme

Metabolism

1st Law of Thermodynamics

2nd Law of Thermodynamics

Energy

Potential energy

Kinetic energy

Stored energy

Heat

Temperature

Energy quality

Open ecosystem

Closed ecosystem

Solar energy

Energy wavelengths

Photosynthesis

CO2 – carbon dioxide

Species

Biological community

Ecosystem

Homeostasis

Superorganism

Gaia

Total productivity

Net productivity

Food chain

Food web

Energy web

Biomass

Omnivore

Carnivore

Herbivore

Scavenger

Decomposer

Detritivore

Minerals

Nutrients

Fertilizers

Carbon sink

Nutrient sink

Nitrogen cycle

Phosphorus cycle

Sulfur cycle

 

What do ecologists study?

 

How are Matter and Mass related?

What are the three states (or phases) of matter?

What are the three states of water?

What do you do to water to change it from a liquid to a solid?

What do you do to water to change it from solid to a liquid?

What do you do to water to change it from a liquid to a gas?

What do you do to water to change it from a gas to a liquid?

What do you do to iron to change it from a solid to a liquid?

What do you do to iron to change it from a liquid to a solid?

List the top 15 elements in living things.

What are the chemical symbols for each element?

What is the difference between a molecule and a compound?

List some examples of compounds.

What is an organic compound?

How is ‘life’ related to organic compounds?

Distinguish between organic compounds and inorganic compounds.

List some important organic compounds and Inorganic compounds.

 

What are the 4 basic types of organic compounds?

What is the function of each type of organic compound, in living things.

 

How is an amino acid related to a protein?

How is a nucleic acid related to DNA or RNA?

How is triglyceride related to lipids.

What is a ‘cell’?

What is the function of the cell membrane?

What is an enzyme?

What is the function of an enzyme?

How is an enzyme like a screwdriver?

What type of organic molecule is an enzyme?

What is another name for ‘enzymatic reaction/?

 

 

What is energy?

What are the different forms of energy?

List all the different forms of energy.

How is ‘heat’ related to ‘energy’?

What is ‘temperature’?

How is temperature related to heat?

What is the 1st law of thermodynamics?

What is the 2nd law of thermodynamics?

How is ‘energy’ contained in ‘molecules’?

How is ‘energy’ transferred from one molecule to the next?

What is ‘useable energy’?

What is ‘high quality energy’?

What is ‘low quality energy’?

What happens to ‘useable energy’ when energy is converted from one form to the next? Which ‘Law’ is this?

 

What kind of energy is carbohydrate?

What kind of energy is lipid?

What kind of energy is water stored behind a damn?

What kind of energy is flowing water or wind?

What kind of energy is in a battery?

Which resource does NOT cycle repeatedly through the earths ecosystems?

How is metabolism related to energy transfer between types of energy or storage locations?

How does water store energy?

How is the ocean able to contain so much energy?

How is the temperature of the ocean related to its mass and heat content?

What is meant by ‘energy quality’?

How is energy quality related to the 1st and 2nd Laws of Thermodynamics?

What is ‘low quality energy?

How is ‘low quality energy’ related to the 2nd Law of Thermodynamics?

What is an ‘open ecosystem’?

What is a ‘closed ecosystem’?

What is the earth? Open or closed?

Why?

 

How is photosynthesis related to the spectrum of energy wavelengths?

What does spectrum mean?

How much solar energy does photosynthesis capture?

What is the product of photosynthesis?

What is CO2?

How is CO2 used in photosynthesis?

What is added to CO2 during photosynthesis?

What is a ‘species’?

How do the individuals of a species use energy?

Why do individual organisms use energy?

What is a biological community?

What is an ecosystem?

What is homeostasis?

How is the ability to maintain homeostasis related to reproduction of the species?

Why do many ecologists think of ecosystems and even the Earth as a superorganism?

What is Gaia?

What did F.E. Clements say about ecosystems?

How is net productivity related to energy use?

How is net productivity related to total productivity?

Compare and contrast biomass production (productivity) in a rain forest and the arctic tundra.

Compare and contrast producers and consumers.

Compare and contrast primary and secondary consumers.

Which is considered to be base for the food chain: producers or consumers?

Which is considered to be at the top of the food chain: primary consumer, secondary, or tertiary consumers?

Compare and contrast a producer with an herbivore and a carnivore?

Which is considered the top of the food chain?

What are the major nutrients?

What are nutrient cycles?

Which resource does NOT cycle repeatedly through the earth’s ecosystems?

 

 

Why are green plants and the phytoplankton in the oceans called ‘carbon sink’s?

What is the role (function) of nitrogen and phosphorus in living things?

What is protein made of?

What is the function of adenosine triphosphate - ATP?

What is ATP made of?

What human activities release N, P, and S?

 

Lecture Slides

 

 


   

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Last updated-05/17/2005