The fuel molecule cells use to run all their activities is
A) sucrose.
B) starch.
C) protein.
D) vitamins.
E) glucose.

Question

Quizplus · Accepted Answer

Glucose is the primary fuel molecule that cells use to run all their activities through a process called cellular respiration. Glucose is broken down in the presence of oxygen to produce energy in the form of ATP, which is used to power cellular activities. Sucrose and starch are sources of glucose, but they need to be broken down into glucose before they can be used by the cells. Proteins and vitamins can also be sources of energy, but they are not the primary fuel molecules used by cells.

The Fuel Molecule Cells Use to Run All Their Activities