Assertion: In electron transport chain, there is a gain of energy at each step.
Reason : At each step of EtC, there are electron carriers.

Options

A. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C. If the assertion is true but the reason is false
D. If the assertion is false but the reason is true

Answer

D

Explanation

In electron transport chain there is a gain of energy in the form of ATP when the electrons pass from one carried to another via complex I to IV in the electron transport chain they are coupled to ATP syntheses for the production of ATP from ADP and inorganic phosphate.
The metabolic pathway through which the electron passes from one carrier to another is called electron transport system.