Question
Both aerobic cellular respiration and lactic acid fermentation produce ATP, though in different amounts. These two ATP-producing processes have some major differences as well as some similarities. What do aerobic respiration and lactic acid fermentation have IN COMMON? Responses A They produce a sour taste.They produce a sour taste. B ATP production begins with glucose.ATP production begins with glucose. C They require an electron transport system.They require an electron transport system. D Pyruvate serves as the final electron acceptor.
Answers
GPT-4o mini
The correct answer is **B**: ATP production begins with glucose.
Both aerobic cellular respiration and lactic acid fermentation start with glucose as the primary substrate for ATP production. The processes diverge after glycolysis, with aerobic respiration proceeding through the Krebs cycle and electron transport chain and lactic acid fermentation converting pyruvate to lactic acid without going through those additional steps.
The other options are not true for both processes:
- **A** is specific to lactic acid fermentation, which produces lactic acid leading to a sour taste, but not aerobic respiration.
- **C** is not accurate because lactic acid fermentation does not require an electron transport system, whereas aerobic respiration does.
- **D** is incorrect because, in aerobic respiration, oxygen serves as the final electron acceptor, while in lactic acid fermentation, pyruvate (or a derivative) serves as the acceptor.
Both aerobic cellular respiration and lactic acid fermentation start with glucose as the primary substrate for ATP production. The processes diverge after glycolysis, with aerobic respiration proceeding through the Krebs cycle and electron transport chain and lactic acid fermentation converting pyruvate to lactic acid without going through those additional steps.
The other options are not true for both processes:
- **A** is specific to lactic acid fermentation, which produces lactic acid leading to a sour taste, but not aerobic respiration.
- **C** is not accurate because lactic acid fermentation does not require an electron transport system, whereas aerobic respiration does.
- **D** is incorrect because, in aerobic respiration, oxygen serves as the final electron acceptor, while in lactic acid fermentation, pyruvate (or a derivative) serves as the acceptor.