Question

In the living tissues 'energy broker' or intermediary source of energy compound formed during glucose oxidation is

• A. NAD
• B. DNA
• C. RNA
• D. ATP

Answer 1

The correct option is A NAD

The synthesis of ATP from ADP is called phosphorylation.The methods to produce ATP are oxidative phosphorylation and substrate level phosphorylation. The substrate level phosphorylation involves the direct production of ATP ie transfer of energy from high energy intermediates to ADP. The oxidative phosphorylation is an indirect method of ATP production in which first reduced coenzymes are produced like NADH${}_2$ which are subsequently oxidized and produce ATP by oxidative phosphorylation.

So, the correct answer is option A.