SCIENCE
RESPIRATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It produces too much ATP
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It only produces 2 ATP
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It occurs in the absence of oxygen
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It is only for quick bursts of energy
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Detailed explanation-1: -What is a disadvantage of fermentation as a process? It produces too much ATP. It only produces 2 ATP. It occurs in the absence of oxygen.
Detailed explanation-2: -The advantage of fermentation is that it produces energy without the aid of oxygen. The disadvantage of fermentation is that it also produces very low amounts of ATP molecules during the process.
Detailed explanation-3: -Without oxygen, some human cells must use fermentation to produce ATP, and this process produces only two molecules of ATP per molecule of glucose. Although fermentation produces less ATP, it has the advantage of doing so very quickly.
Detailed explanation-4: -Lactic acid fermentation has two steps: glycolysis and NADH regeneration. During glycolysis, one glucose molecule is converted to two pyruvate molecules, producing two net ATP and two NADH.
Detailed explanation-5: -No ATP is generated during the process of fermentation. But fermentation allows the operation of glycolysis to generate energy. It results in lactic acid production, which on assembling in muscle tissue, results in a burning sensation. Metabolic breathing restarts in the presence of enough oxygen.