CELL RESPIRATION
ANAEROBIC RESPIRATION FERMENTATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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You stop aerobic respiration and start lactic acid fermentation
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You start aerobic respiration
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You stop anaerobic respiration
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You stop lactic acid fermentation and start aerobic fermentation
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Detailed explanation-1: -Fermentation does not require oxygen and is therefore anaerobic. Fermentation will replenish NAD+ from the NADH + H+ produced in glycolysis.
Detailed explanation-2: -Humans undergo lactic acid fermentation when the body needs a lot of energy in a hurry. When you are sprinting full speed, your cells will only have enough ATP stored in them to last a few seconds. Once the stored ATP is used, your muscles will start producing ATP through lactic acid fermentation.
Detailed explanation-3: -4: Lactic acid fermentation makes ATP in the absence of oxygen by converting glucose to lactic acid (through a pyruvate intermediate). Making lactic acid from pyruvate oxidizes NADH, regenerating NAD+ so that glycolysis can continue to make more ATP rapidly.
Detailed explanation-4: -In the absence of oxygen, oxidative phosphorylation cannot be used to produce ATP, so glycolysis becomes the primary source of ATP for the cell. The importance of lactic acid fermentation is that it replenishes cellular for the glyceraldehyde-3-phosphate dehydrogenase reaction, which precedes the ATP-producing steps.