BIOCHEMISTRY
ENZYMES AND METABOLISM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Glycolysis can occur with or without oxygen
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Glycolysis is the first step in both anaerobic and aerobic respiration
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Glycolysis occurs in the mitochondria
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Glycolysis produces 2 ATP, 2 Pyruvates, and 2 NADH
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Detailed explanation-1: -Which of the following does not occur in the mitochondrion? Explanation: Glycolysis is the only metabolic process of the choices listed that does not occur in the mitochondrion; it occurs in the cytoplasm. Citric acid cycle and Krebs cycle refer to the same process, which occurs in the mitochondrion.
Detailed explanation-2: -The incorrect answer is c) At the end of glycolysis, the six carbons that originated in glucose are found in one molecule of pyruvate and three carbon dioxide. At the end of glycolysis, there are two pyruvate molecules and no carbon dioxide is produced.
Detailed explanation-3: -No, glycolysis does not takes place in the mitochondria. It occurs in the cytosol.
Detailed explanation-4: -Glycolysis is the process by which glucose is broken down within the cytoplasm of a cell to form pyruvate. Under aerobic conditions, pyruvate can diffuse into mitochondria, where it enters the citric acid cycle and generates reducing equivalents in the form of NADH and FADH2.