Question

what is the enzyme that is present at the end of the electron transport chain?
coenzyme a
coenzyme atp
atp - synthase
adp - synthase

Explanation:

In cellular respiration, the electron - transport chain generates a proton gradient. ATP - Synthase uses this gradient to produce ATP and is located at the end of the electron - transport chain. Coenzyme A is involved in the citric acid cycle, not the end of the electron - transport chain. There is no such thing as Coenzyme ATP, and ADP - Synthase is not a recognized enzyme in this context.

Answer:

C. ATP - Synthase