The arrangement of subunits in the PDH(pyruvate dehydrogenase)complex ensures that ________.
A)ATP is formed
B)the product of one enzyme is delivered to the next in turn
C)the dihydrolipoamide arm can react with NAD+
D)acetyl CoA enters into the series of reactions

Question

Quizplus · Accepted Answer

The arrangement of subunits in the PDH complex ensures that the product of one enzyme is delivered to the next in turn. This helps to coordinate the series of reactions and prevent the escape of intermediates from the complex. ATP is not directly formed by the PDH complex, although it does play a crucial role in aerobic respiration overall. The dihydrolipoamide arm can react with NAD+ as part of the complex, but this is not the main function of the arrangement of subunits. Acetyl CoA does enter into the series of reactions, but this is facilitated by the overall architecture of the complex and not necessarily the specific arrangement of subunits.

The Arrangement of Subunits in the PDH(pyruvate Dehydrogenase)complex Ensures That