Question

The bonds present between AMP $+$ $P_i$ and ADP $+$ $P_i$ are __________.

• A. Phosphoester bonds
• B. Phosphoanhydride bonds
• C. Phosphodiester bonds
• D. Covalent bonds

Answer 1

The correct option is B Phosphoanhydride bonds

Answer is option B i.e. "Phosphoanhydride bonds"
The bond between two phosphate groups is a phosphoanhydride bond which is considered as high energy bond.
So, ADP has only one high energy bond while AMP has only one phosphate ester bond which is low energy bond.