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Question

The number of ATP molecules produced during the oxidation of 1 molecule of glucose is :

A
12
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B
18
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C
36
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D
38
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Solution

The correct option is C 36
Cellular respiration uses one molecule of glucose to produce 36 ATP molecules. In cellular respiration, energy is stored chemical bonds of glucose.Energy of glucose is known as ATP. Cells then must use this ATP to function. Therefore, the act of cellular respiration takes both stored glucose and these ATP molecules to function correctly.
The glucose is oxidized during this process. Oxygen becomes reduced and forms water. Carbon dioxide is released as sugar.Two ATP molecules are produced. If oxygen is present in the pathway, 34 more ATP molecules are form during this entire cellular respiration process.

Therefore 36 ATP molecule is produced during oxidation of 1 glucose molecule.

Hence, the correct option is C.

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