Q: The major fuel for the brain is which carbohydrate?


Read this paragraph and choose the correct option from the provided answers:

The brain is a marvelous organ. And it’s a hungry one, too. The major fuel for the brain is the carbohydrate glucose. The average adult brain represents about 2% of our body’s weight, but uses 25% of the glucose in the body. Moreover, specific areas of the brain use glucose at different rates. If you are concentrating hard, (taking a test, for example) certain parts of the brain need a lot of extra glucose while other parts of the brain only use their normal amount. Something to think about.

 Choices:

- glutamate

- sucrose

- insulin

- glucose


A:
glucose