TREE PHYSIOLOGY
RESPIRATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A weightlifter is using heavy weights in short bursts for a competition. Because his muscle cells are not able to take in enough oxygen to make very much ATP the weightlifter begins to get fatigue in his muscles. Which of the following processes is most likely going on in the muscles of the weightlifter as he competes in his event?
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As the cells run out of oxygen they switch to anaerobic respiration, which allows the cell to make small amounts of ATP in the absence of oxygen.
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As the cells run out of oxygen, they die off gradually and the weightlifter’s muscles have fewer contracting muscle cells.
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The cells will never run out of oxygen if the weightlifter is breathing
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As the cells run out of oxygen, they will continue to make the same amount of ATP, since oxygen is not required to make ATP
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Explanation:
Detailed explanation-1: -When your body runs out of oxygen, or your other systems can’t deliver oxygen to your muscles quickly enough, your muscles convert the available glucose into lactic acid instead.
Detailed explanation-2: -Final answer: Sometimes when we do heavy exercise, anaerobic respiration takes place in our muscle cells. Lactic acid is produced during this process.
Detailed explanation-3: -ATP hydrolysis provides the energy needed for many essential processes in organisms and cells. These include intracellular signaling, DNA and RNA synthesis, Purinergic signaling, synaptic signaling, active transport, and muscle contraction.
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