During respiration, energy flows in the following sequence.
A)glucose → NADH → electron transport → oxygen
B)glucose → electron transport → NADH → proton-motive force → ATP
C)pyruvate → acetyl-CoA → electron transport → water
D)glucose → pyruvate → acetyl-CoA → CO₂
E)glucose → NADH → electron transport → proton-motive force → ATP

Question

Quizplus · Accepted Answer

During respiration, glucose is broken down to produce NADH, which then donates its electrons to the electron transport chain. The movement of these electrons creates a proton-motive force, which drives the synthesis of ATP from ADP and Pi. Ultimately, oxygen accepts the electrons and combines with protons to form water. This sequence is accurately represented by choice E.

During Respiration, Energy Flows in the Following Sequence