PHYSIOLOGY
MUSCLE ENERGETICS GLYCOLYSIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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____ molecules of ATPs are invested and total ____ molecules of ATPs are formed in the end of glycolysis.
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One; two
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Two; four
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Two; two
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Four; four
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Explanation:
Detailed explanation-1: -One glucose molecule yields four ATP molecules in total during glycolysis. Since 2 ATP molecules are used up in the first phase of glycolysis, there is a net gain of 2 ATP molecules. In addition, glycolysis results in the production of 2 NADH molecules.
Detailed explanation-2: -Therefore, a total of 38 ATP molecules are obtained at the end of every respiration cycle in a cell.
Detailed explanation-3: -During glycolysis, one glucose molecule is split into two pyruvate molecules, using 2 ATP while producing 4 ATP and 2 NADH molecules.
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