Worksheet Questions

Question 1

What is the final electron acceptor in the electron transport chain?

Answer 1

Final Electron Acceptor is oxygen which also picks up 2H+ ions to form H2O (still no ATP production)

Question 2

How is cellular respiration regulated?

Answer 2

1

Question 3

Why does is energy harvested from our food in so many steps? Why can’t it all be done at once?

Answer 3

1

Question 4

Where does each step take place?
 A. Glycolysis
 B. Pyruvate Oxidation
 C. Citric Acid Cycle
 D. Oxidative Phosphorylation

Answer 4

1

Question 5

What is the purpose of adding coenzyme A to form acetyl CoA if it is just cleaved off in the first step of
the Krebs Cycle?

Answer 5

1

Question 6

How is chemiosmosis an example of energy coupling?

Answer 6

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Question 7

Where does the energy for ATP synthesis come from (most directly)?

Answer 7

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Question 8

What is an uncoupling protein? How does it allow an animal to survive hibernation?

Answer 8

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Question 9

How is anaerobic respiration and fermentation different?

Answer 9

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Question 10

What is the main purpose of fermentation (besides generating ATP)?

Answer 10

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