Download Learning Guide: Origins of Life

Learning Guide: Cellular Respiration
Bill Activity #28A
To Think About: How do living things produce and use energy to survive in an ecosystem? In what ways do living things
create matter to survive in an ecosystem? How do communities interact within their environments that result in the
movement of matter and energy?
1st Interact: Watch Mr. Andersen’s Video on Cellular Respiration and take notes.
2nd Read and Record Key Terms/ Explain: Cellular Respiration and Fermentation
Pgs. 163-183 Campbell’s Biology 9th edition
Here is a list of key terms and concepts you will hear about and see during the lecture, podcast and chapter reading.
Create a 2 column note structure to list the terms and definitions/information for each one. (They are listed vertically in
order of the processes involved, color code the three processes/associated terms as we did with the note packet)
Key Terms
Aerobic respiration
Cellular respiration
Cellular respiration eq.
Redox reactions
Oxidation
Reduction
NAD/NADH
Substrate-level
phosphorylation
Glycolysis
Oxidation of Pyruvate
to Acetyl coA
Citric acid cycle
Oxidative
phosphorylation
Electron transport chain
Cytochromes
Chemiosmosis
Obligate anaerobes
Facultative anaerobes
ATP synthase
Proton motive force
Fermentation
Alcoholic fermentation
Lactic acid
fermentation
Explain
1. The process of glycolysis does not require oxygen in order to occur. Explain what this tells us about the
evolutionary history of this metabolic process.
2. In the absence of oxygen, fermentation occurs. Explain the primary purpose of this process.
3. Identify the source of the electrons that travel down the electron transport chain. Explain why oxygen is the
final electron acceptor in aerobic cellular respiration.
4. Create a graphic organizer that illustrates the reactants and products for each of the major stages of cellular
respiration:
(a) Glycolysis
(b) Krebs Cycle
(c) Oxidative phosphorylation
5. Compare and contrast chemiosmosis that takes place in the mitochondria to produce ATP to the osmosis of
water that can occur in a cell.
6. Carbohydrates are the primary energy source for many cells, but proteins and lipids can also be used. Describe
where these alternative energy sources enter the process of cell respiration.
Supplementary Resources: Click the links below for more information to help you learn more about this lesson.
 Hillis et al.:Electron Transport and ATP Synthesis animated tutorial
 Hillis et al.:Glycolysis and Fermentation tutorial
 Hillis et al.: Photophosphorylation
 Sumanas, Inc.: Cellular Respiration Animation
 Virtual Cell Animation: Glycolysis, Step by Step
 PHSchool.com: Cellular Respiration Animation
Learn More: For more information about metabolism, use the links below:
 John Kyrk: Glycolysis Animation
 John Kyrk: Oxidative Phosphorylation Animation
 John Kyrk: Krebs Cycle Animation