Question

1. which molecule is used for cellular work when the bonds are broken? a glucose b nadh c atp d protein

Explanation:

ATP (adenosine - triphosphate) is the energy - currency of the cell. When the high - energy phosphate bonds in ATP are broken, energy is released and used for cellular work. Glucose is a source for energy production but is not directly used for cellular work upon bond - breaking in the same way as ATP. NADH is an electron carrier in cellular respiration. Proteins have various functions like structure, catalysis, etc., but are not the main molecule for immediate cellular work upon bond - breaking.

Answer:

C. ATP