How much of the body's metabolic energy does the brain consume?
A) 1%
B) 50%
C) 20%
D) 80%

Question

Quizplus · Accepted Answer

The brain accounts for approximately 20% of the body's metabolic energy consumption, despite being only 2% of the body's weight. This high energy consumption is due to the brain's constant activity, maintaining ion gradients across cell membranes, synthesizing and releasing neurotransmitters, and performing essential cognitive functions.

How Much of the Body's Metabolic Energy Does the Brain