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Question
How many ATP is utilized in the preparatory phase of glycolysis?
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Solution
The correct option is C 2
Glycolysis is a metabolic process in which one glucose molecule is converted into 2 puruvate molecules under aerobic condition. During the formation of 3-phosphoglyceric acid and pyruvic acids 2 ATP molecules are formed respectively. However, 2 molecules of ATP are utilized during conversion of glucose to glucose-6-phosphate and fructose-6-phosphate to fructose-1,6-biphosphate. Hence, the end products of glycolysis are 2 ATP molecules, 2 pyruvic acid molecules and 2 NADH molecules. Thus, the correct answer is '2.'
Glycolysis is a metabolic process in which one glucose molecule is converted into 2 puruvate molecules under aerobic condition. During the formation of 3-phosphoglyceric acid and pyruvic acids 2 ATP molecules are formed respectively. However, 2 molecules of ATP are utilized during conversion of glucose to glucose-6-phosphate and fructose-6-phosphate to fructose-1,6-biphosphate. Hence, the end products of glycolysis are 2 ATP molecules, 2 pyruvic acid molecules and 2 NADH molecules.
Thus, the correct answer is '2.'
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