The oxygen level in the climber’s blood decreases as she increases in altitude. The change in oxygen levels restricts the ability of cells to release stored oxygen. As a result, cellular respiration stops after fermentation. Instead, cells switch to glycolysis, which causes a decrease in lactic acid levels in the muscles.
Answers
After many tries, I found out the answer. The following paragraph is the answer. The ones with [' '] are the corrections.
The oxygen level in the climbers blood 'decreases' as she increases in altitude. The change in oxygen levels restricts the ability of cells to release stored 'energy'. As a result, cellular respitation stops after 'glycolysis'. Instead, cells switch to 'fermentation', which causes an 'increase' in lactuc acid levels in the muscles.
The following paragraph is the explanation.
The graph shows that oxygen levels in the climbers's blood decrease with altutyde. Since cellular respitation is an aerobic preocess, the decrease in oxygen limits the ability of cells to release the energy stored in glucose. Cells can only complete the glycolysis part of cellular respiration. Cells therefore switch to fermentation to use glucose stores. Lactic acid is a waste product of fermentation, so a lack of oxygen results in lactic acid production.
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