Quiz 2: Foundations

What percentage of the brain’s total weight is composed of water?

75-80%

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50-60%

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60-75%

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45-55%

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Which component is described as the second most abundant in the brain, critical for myelin sheaths and cell membranes?

Glucose

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Protein

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Lipids/Fats

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Minerals

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What is the primary role of proteins like glutamate decarboxylase and tyrosine hydroxylase in the brain?

Regulating electrical conductivity through hydration

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Neurotransmitter production and enzymatic synthesis

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Providing the brain's primary energy source

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Structural support for blood vessels

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Which minerals are specifically noted for their role in regulating the brain’s electrical activity?

Iron and Zinc

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Copper, Selenium, and Iron

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Phospholipids, Cholesterol, and Zinc

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Sodium, potassium, calcium, and magnesium

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