Question

question 9 (multiple choice worth 4 points) (02.058.r mc) a swimmer sprints a short distance for a competition. the swimmer is not able to take in enough oxygen to make the atp needed for the sprint. which of the following processes is most likely going to occur in the swimmers muscle cells during the competition? aerobic respiration would continue until oxygen is no longer available, leading to cell death. aerobic respiration will continue to make the same amount of atp, since oxygen is not required. anaerobic respiration would be used to produce small amounts of atp in the absence of oxygen. anaerobic respiration will produce more atp than the process used in the presence of oxygen. question 10 (multiple choice worth 4 points)

Explanation:

1. Analyze Option A: Aerobic respiration needs oxygen. The swimmer can't get enough oxygen, so aerobic respiration can't continue until oxygen is unavailable (it can't even start properly here), and cell death isn't immediate from lack of oxygen for a short sprint. Eliminate A.
2. Analyze Option B: Aerobic respiration requires oxygen to produce a large amount of ATP. Since oxygen is limited, aerobic respiration won't continue to make the same ATP as it needs oxygen. Eliminate B.
3. Analyze Option C: Anaerobic respiration occurs without oxygen. In short, intense activities (like a sprint) where oxygen is insufficient, muscle cells use anaerobic respiration (like lactic acid fermentation) to produce small amounts of ATP to meet energy needs. This matches the scenario.
4. Analyze Option D: Anaerobic respiration produces much less ATP per glucose molecule than aerobic respiration (aerobic produces 30 - 32 ATP, anaerobic produces 2 ATP). So it can't produce more ATP than aerobic. Eliminate D.

Answer:

C. Anaerobic respiration would be used to produce small amounts of ATP in the absence of oxygen.