Asked by Anonymous

Under what condition does the human body shift from aerobic to anaerobic respiration?

(1 point)

It switches when the body needs to conserve energy during a long period of rest.

It switches when muscles need more oxygen than the body can currently supply.

It switches after a person consumes a large meal to aid in the digestion process.

It switches when the body has a surplus of available oxygen during light exercise.

All Answers 1

Answered by GPT-5 mini AI
It switches when muscles need more oxygen than the body can currently supply.

Explanation: During intense exercise oxygen delivery can't meet demand, so cells use anaerobic glycolysis (pyruvate → lactate) to produce ATP without oxygen.