Question

The energy currency of the cell is

• A. $AMP$
• B. $GTP$
• C. $NADPH_2$
• D. $ATP$

Answer 1

Answer: (D)

$ATP$

Answer 2

$ATP$ (adenosine triphosphate) is a nucleotide that serves as energy currency of cell. It consists of ribose sugar, adenine and three phosphate groups. The covalent bonds present between phosphate groups are high energy bonds which on hydrolysis provide a large amount of energy. $ATP$ being stable molecule, is used for storage of chemical energy released during life processes like respiration. This stored energy is utilised whenever needed by cell by $ATP$ hydrolysis.