Assertion: One way of indicating the ATP yield from oxidative phosphorylatioon is the P/O ratio.
Reason: The cell stores 40% of the chemical energy.

Answer

B

Explanation

One way of indicating the ATP yield from oxidative phosphoryatlytion is the P/O ratio, which is expressed as the moles of inorganic phosphate used per oxygen atom consumed . The cell stores 40% of the chemical energy liberated by the combustion of glucose in the form of ATP. the rest of the energy is dissipated as heat or used for other cell functions.