Question

Which of the following is true of how skeletal muscles acquire ATP during intense weight lifting?
Responses

During intense weight lifting, your muscles switch to the lactic acid fermentation pathway to gain small amounts of ATP.
During intense weight lifting, your muscles switch to the lactic acid fermentation pathway to gain small amounts of ATP.

During intense weight lifting, your muscles switch from breaking down glucose to making glucose. This provides an alternative pathway for getting ATP.
During intense weight lifting, your muscles switch from breaking down glucose to making glucose. This provides an alternative pathway for getting ATP.

During intense weight lifting, your cells produce about 45 molecules of ATP per cycle of cellular respiration.
During intense weight lifting, your cells produce about 45 molecules of ATP per cycle of cellular respiration.

During intense weight lifting, your muscles switch to the alcoholic fermentation pathway to gain small amounts of ATP.

Answer 1

The true statement regarding how skeletal muscles acquire ATP during intense weight lifting is:

**During intense weight lifting, your muscles switch to the lactic acid fermentation pathway to gain small amounts of ATP.**

During intense exercise, when oxygen supply is limited, muscles anaerobically metabolize glucose through lactic acid fermentation, allowing for a faster, albeit less efficient, generation of ATP compared to aerobic respiration. The other statements do not accurately represent muscle metabolism during intense activity.