Question

Virtually the only fuel used by the brain, except during prolonged starvation, when these supplies are too low is ____________.

a. glucose
b. fructose
c. galactose
d. sucrose

Answer 1

Virtually the only fuel used by the brain, except during prolonged starvation, when these supplies are too low is glucose

Answer 2

Virtually the only fuel used by the brain, except during prolonged starvation, when these supplies are too low is glucose. Correct answer: A

The human brain depends on glucose as its main source of energy, because the glucose metabolism provides the fuel for physiological brain function. This is done through the generation of ATP, the foundation for neuronal and non-neuronal cellular maintenance, as well as the generation of neurotransmitters.