BMAT考试：科学知识与应用练习（21）

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BMAT考试：科学知识与应用练习

In order to function, the cells of the brain need

large amounts of energy. Any reduction in the function of these cells can have

serious consequences for the body. For example, a loss of oxygen supply to the

brain can cause unconsciousness within 5–10 seconds.

Which of the following statements are true?

1 Neuronsin the brain are capable of relying on anaerobic respiration for long periodsof time.

2 Thehomeostatic systems of the body will constantly have to work to resisttemperature increases in the brain.

3 Anoverdose of insulin in the body could produce a serious loss of brain function,such as inducing a coma.

4 Duringnormal functioning of neurons in the brain, high levels of carbon dioxide couldbe produced.

A   1 and 2 only

B   1 and 3 only

C   2 and 3 only

D   2 and 4 only

E   1, 3 and 4 only

F   1, 2 and 4 only

G   2, 3 and 4 only

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