Question

question 14 of 25
when lactate builds up in a runners muscles, it causes a burning sensation.
what causes this to occur?
a. the muscles are using alcohol fermentation to generate energy.
b. the muscles are producing too much acetyl coa.
c. the muscles do not have enough oxygen for aerobic respiration.
d. the muscles have too much oxygen, causing the production of glucose.

Explanation:

When a runner's muscles lack sufficient oxygen for aerobic respiration, they switch to anaerobic respiration. In humans, this anaerobic process produces lactate. Lactate buildup causes the burning sensation. Alcohol fermentation (A) occurs in yeast, not human muscles. Excess acetyl CoA (B) is not directly related to lactate - induced burning. Excess oxygen (D) would support aerobic respiration, not lead to lactate production.

Answer:

C. The muscles do not have enough oxygen for aerobic respiration