Final answer:
In the absence of ATP synthase, animal cells would not be able to generate ATP, which is the energy currency of the cell.
Step-by-step explanation:
The correct answer is c) Generate ATP.
ATP synthase is an enzyme found in the mitochondria of animal cells that is responsible for producing ATP. ATP, or adenosine triphosphate, is the energy currency of the cell and is essential for many cellular processes. Without ATP synthase, animal cells would not be able to generate ATP, resulting in a lack of energy and the inability to carry out various cellular functions.