The major enzyme involved in the transfer of the phosphate group from ATP to glucose is:
Correct answer: C. Kinase
- A. Isomerase
- B. Dehydrogenase
- C. Kinase
- D. Decarboxylase
Explanation
The major enzymes involved in the transfer of a phosphate group from ATP to glucose are kinases (Option C). Specifically, the enzyme hexokinase is responsible for catalyzing this phosphorylation reaction, where a phosphate group is transferred from ATP to glucose to form glucose-6-phosphate.The other enzymes listed (isomerase, dehydrogenase, and decarboxylase) are involved in different types of biochemical reactions and are not responsible for this specific phosphorylation step in glucose metabolism.
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Cellular respiration explains how cells release energy from glucose through glycolysis, the link reaction, Krebs cycle and electron transport chain. It includes ATP production, substrate-level and oxidative phosphorylation, aerobic versus anaerobic respiration, and the roles of mitochondria, oxygen and fermentation in energy transfer.
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