Question

Which pathway describes the flow of electrons in the mitochondrion?

A. TCA cycle ->NADH->electron transport chain->oxygen
B.glucose->TCA cycle->NADH->ATP->oxygen
C.glucose->electron transport chain->ATP->oxygen
D. electron transport chain->TCA cycle->ATP->oxygen

Answer 1

The flow of electrons in the mitochondrion follows the pathway: Glucose -> TCA cycle -> NADH -> electron transport chain -> ATP -> Oxygen.

Step-by-step explanation:

The flow of electrons in the mitochondrion follows the pathway:

Glucose -> TCA cycle -> NADH -> electron transport chain -> ATP -> Oxygen

During glycolysis, glucose is broken down to pyruvate. Pyruvate then enters the citric acid cycle (also known as the TCA cycle), which produces NADH. The NADH donates electrons to the electron transport chain, where ATP is generated through chemiosmosis. Oxygen is the final electron acceptor in the electron transport chain, which produces water.