Question

during strenuous exercise, anaerobic conditions can result if the cardiovascular system cannot supply oxygen fast enough to meet the demands of muscle cells. assume that a muscle cells demand for atp under anaerobic conditions remains the same as it was under aerobic conditions. what would happen to the cells rate of glucose utilization? view available hint(s) glucose utilization would increase a lot. glucose utilization would increase a little. glucose utilization would remain the same. glucose utilization would decrease a little. glucose utilization would decrease a lot. submit

Explanation:

Under aerobic conditions, one glucose molecule can produce about 30 - 32 ATP through glycolysis, pyruvate oxidation, the citric acid cycle, and oxidative phosphorylation. Under anaerobic conditions (like strenuous exercise when oxygen supply is limited), only glycolysis occurs (since the subsequent aerobic pathways require oxygen). Glycolysis alone produces only 2 ATP per glucose. But if the cell's demand for ATP remains the same, to get the necessary ATP amount (because each glucose now yields much less ATP), the cell has to consume glucose at a much higher rate.

Answer:

Glucose utilization would increase a lot.