Cyanide binds to one of the proteins in complex IV in the electron transport cha

Question

Cyanide binds to one of the proteins in complex IV in the electron transport chain, thereby preventing it from transferring electrons to oxygen. Consider two kinds of cells: cells that can only use cellular respiration and cells that can only use fermentation. For each cell type, what will happen to: (in each case, justify your answer):

(A) The rate of ATP formation in cells using cellular respiration?

In cells using fermentation?

(B) The amount of NADH in the cell using cellular respiration?

In cells using fermenation?

(C) The amount of FAD in the cell using cellular respiration?

In cells using fermenation?

(D) The amount of oxygen used by the cell using cellular respiration?

In cells using fermentation?

(E) The rate of glycolysis in cells using cellular respiration?

In cells using fermentation?

Explanation / Answer

A. The number of ATP reduces in cells using cellular respiration. The number in cells using fermentation remains the same since electron transport chain is not used.

B. The amount of NADH accumulates since it cannot be oxidized to gain ATP. The amount does not change as ETC is not used in cells using fermentation.

C. The amount of FAD accumulates since it cannot be reduced to gain ATP. The amount does not change as ETC is not used in cells using fermentation.

D. The amount of oxygen used would be the same. In cells using fermentation also this does not change.

We cannot answer more than 4 subparts according to chegg rules.

Related Questions

Navigate

• Browse (All)
• Browse C
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.