Cytosolic reducing equivalents enter the electron transport chain by
A) Being carried by malate
B) Being carried by pyruvate
C) Being carried by glycerol-3-phosphate
D) Being carried by ADP
E) A and C are correct

Question

Quizplus · Accepted Answer

Cytosolic reducing equivalents can enter the electron transport chain through shuttle mechanisms. The malate-aspartate shuttle carries reducing equivalents into the mitochondria by converting oxaloacetate to malate, which can then cross the mitochondrial membrane. Similarly, the glycerol-3-phosphate shuttle transfers electrons from NADH in the cytosol to FADH2 in the mitochondria.

Cytosolic Reducing Equivalents Enter the Electron Transport Chain by