Question

why do people who train or exercise have less oxygen debt? (mark all that apply) check all that apply their muscles perform fermentation more often. their number of muscle mitochondria is higher. their muscles produce less lactate so their blood ph remains steady. their muscles have the ability to use more glucose.

Explanation:

1. Fermentation is an anaerobic process and more fermentation would lead to more oxygen - debt, so the first option is incorrect.
2. Higher number of muscle mitochondria means more efficient aerobic respiration, reducing oxygen - debt.
3. Less lactate production means less need to convert lactate back to pyruvate using oxygen, reducing oxygen - debt.
4. Ability to use more glucose aerobically means less reliance on anaerobic processes, reducing oxygen - debt.

Answer:

Their number of muscle mitochondria is higher.
Their muscles produce less lactate so their blood pH remains steady.
Their muscles have the ability to use more glucose.