AP BIOLOGY

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CELL RESPIRATION

OXIDATIVE PHOSPHORYLATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
After strenuous exercise, a muscle cell would contain decreased amounts of ____ and increased amounts of ____ ____
A
glucose ATP
B
ATP glucose
C
oxygen lactic acid
D
lactic acid ATP
Explanation: 

Detailed explanation-1: -Lactic acid is mainly produced in muscle cells and red blood cells. It forms when the body breaks down carbohydrates to use for energy when oxygen levels are low. Times when your body’s oxygen level might drop include: During intense exercise.

Detailed explanation-2: -This process occurs in oxygen debt. Hence, the amount of oxygen required to oxidize lactic acid to carbon dioxide and water is not present. Aerobic respiration produces 38 ATP whereas anaerobic respiration produces only 2 ATP molecules. Was this answer helpful?

Detailed explanation-3: -The extra oxygen you breathe in reacts with the lactic acid in your muscles, breaking it down to make carbon dioxide and water.

Detailed explanation-4: -Aerobic Exercise As you breathe more heavily with exertion carbon dioxide is expelled from your body. Lactic acid is not produced as it is with anaerobic exercise.

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