BIOL 133 CHAPTER 7 | COMPREHENSIVE BIOLOGY STUDY GUIDE, PRACTICE
QUESTIONS & ANSWERS 2026/2027
Removal of NH3 is best described as _____.
A. beta oxidation
B. deamination
C. lipolysis
D. glycolysis - correct answer ✔✔B. deamination
Which vitamin derivative accepts hydrogen for complex I during ETC?
A. thiamine
B. riboflavin
C. niacin
D. pantothenic acid - correct answer ✔✔B. riboflavin
NADH and FADH2 are products of
A. glycolysis
B. oxidation/reduction reactions
C. substrate level phosphorylation
D. chemiosmosis - correct answer ✔✔B. oxidation/reduction reactions
Molecules generated from butter will enter aerobic cellular respiration at:
A. pyruvate oxidation
B. Krebs cycle
C. oxidative phosphorylation
D. glycolysis - correct answer ✔✔A. pyruvate oxidation
___ carbon dioxide molecules are given off during three turns of the Krebs cycle?
A. 1
B. 2
C. 3
D. 4
E. 6 - correct answer ✔✔E. 6
In gluconeogenesis, organisms use ATP to make glucose, then in cellular respiration they break down the
glucose again to get energy. Why not just store the ATP?
A. ATP does not have high-energy bonds
B. ATP is not energy dense enough.
C. ATP only has energy after it is activated by glucose
D. ATP only has energy when it is attached to glucose
E. ATP is not stable enough
F. ATP without a cofactor forms crystalline structures
G. Using glucose directly to power enzymes is more efficient. - correct answer ✔✔B. ATP is not energy
dense enough.
E. ATP is not stable enough.
QUESTIONS & ANSWERS 2026/2027
Removal of NH3 is best described as _____.
A. beta oxidation
B. deamination
C. lipolysis
D. glycolysis - correct answer ✔✔B. deamination
Which vitamin derivative accepts hydrogen for complex I during ETC?
A. thiamine
B. riboflavin
C. niacin
D. pantothenic acid - correct answer ✔✔B. riboflavin
NADH and FADH2 are products of
A. glycolysis
B. oxidation/reduction reactions
C. substrate level phosphorylation
D. chemiosmosis - correct answer ✔✔B. oxidation/reduction reactions
Molecules generated from butter will enter aerobic cellular respiration at:
A. pyruvate oxidation
B. Krebs cycle
C. oxidative phosphorylation
D. glycolysis - correct answer ✔✔A. pyruvate oxidation
___ carbon dioxide molecules are given off during three turns of the Krebs cycle?
A. 1
B. 2
C. 3
D. 4
E. 6 - correct answer ✔✔E. 6
In gluconeogenesis, organisms use ATP to make glucose, then in cellular respiration they break down the
glucose again to get energy. Why not just store the ATP?
A. ATP does not have high-energy bonds
B. ATP is not energy dense enough.
C. ATP only has energy after it is activated by glucose
D. ATP only has energy when it is attached to glucose
E. ATP is not stable enough
F. ATP without a cofactor forms crystalline structures
G. Using glucose directly to power enzymes is more efficient. - correct answer ✔✔B. ATP is not energy
dense enough.
E. ATP is not stable enough.