Question

ATP is a good source of energy for cellular proceses because it has some weak, high energy bonds. Which one of the following statements is true regarding these weak, high energy bonds
a. The weak, high energy bonds are the result of two repelling negatively charged functional groups
b. The weak, high energy bonds are the result of a strong attraction between a negatively charged functional group and a positively charged functional group
c. The weak, high energy bonds are the result of two attracting negatively charged functional groups
d. All of the above

Answer 1

Answer:

A

Explanation:

The structure of ATP is such that there are three (3) phosphate moelcules in sequence attached to the 5’ carbon of the ribose sugar ring. The O- groups of each phosphate are close to each other and are negatively charged. They, therefore, repel each ohtehr electrostatically and make ATP very unstable – hence considered weak bonds. ADP is more stable than ATP.  Nonetheless, phosphoanhydride bonds between the phosphate have high energy of ΔG of -30.5 kJ/mol. These characteristic make ATP ideal as ane energy currency since it is easy to hydrolyze while producing much energy.