Question

Which statement about anaerobic respiration is true?
Anaerobic respiration prevents muscle fatigue.
Anaerobic respiration generates a high yield of ATP.
Anaerobic respiration is used commercially in the production of beer, wine, bread, yogurt, and cheese.
Anaerobic respiration can provide energy to animals for several days in the absence of oxygen.

Answer 1

The true statement is:
- Anaerobic respiration is used commercially in the production of beer, wine, bread, yogurt, and cheese.

Brief explanations for the others:
- It does not prevent muscle fatigue — anaerobic glycolysis produces lactate and an oxygen debt that contribute to fatigue.
- It does not generate a high yield of ATP — fermentation yields only about 2 ATP per glucose (far less than aerobic respiration).
- It cannot provide animals energy for days without oxygen — anaerobic ATP production is short‑term (seconds to minutes, at best) and unsustainable for long periods.