Question

Cells can oxidize carbohydrates to drive ATP synthesis. Cells can also build large macromolecules like cellulose. What would happen to the rate of carbohydrate oxidation if you add a poison that stops cellulose synthesis?

	A.	Carbohydrate oxidation would remain the same
	B.	Carbohydrate oxidation would increase
	C.	Carbohydrate oxidation would decrease

Answer 1

A. Carbohydrate oxidation would remain the same

Explanation- Cellulose is a polysaccharide a complex carbohydrate found as the the structural component of all plant cell walls. They are not used as the source of energy. Also humans are unable to metabolize cellulose as a source of energy. So inhibiting the synthesis of cellulose with a poison would not affect carbohydrate oxidation to drive ATP synthesis.

Starches or other complex carbohydrates like glycogen effect the carbohydrate oxidation. They are digested in the small intestine to glucose, which is absorbed into the blood.The absorbed glucose is then transported all over the body to the cells which is metabolized to carbon dioxide, water, and ATP in the cells by three respiratory cycles glycolysis, Krebs cycle, and electron transport chain.

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