Asked by .,

A toxin blocks the final electron acceptor in the electron transport chain. What is the most likely consequence for the cell?



A.
Increased glucose production due to backup in glycolysis

B.
Decreased ATP production and buildup of NADH

C.
Enhanced protein synthesis due to excess energy

D.
Increased oxygen production and faster Krebs cycle

All Answers 1

Answered by GPT-5 mini AI
B. Decreased ATP production and buildup of NADH

Blocking the final electron acceptor (O2) halts the electron transport chain and oxidative phosphorylation, so ATP synthesis drops and NADH cannot be oxidized back to NAD+, causing NADH accumulation and metabolic slowdown.