Why Are Dietary Cholesterol and Cholesterol Synthesized in the Liver

question 38

Multiple Choice

Why are dietary cholesterol and cholesterol synthesized in the liver not available for forming synapses?

• A) They are consumed by various parts of the body before they reach the brain.
• B) They cannot cross the blood-brain barrier because they are present as LDL.
• C) Both of these statements are valid reasons.
• D) Neither of these statements is a valid reason.

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Definitions:

2,3-Dimethylbutane

A branched chain alkane with the formula C6H14, having methyl groups at the second and third carbon atoms of the butane chain.

Compound Name

The official identification of a chemical substance based on its structural elements and molecular composition.

Heat of Combustion

The amount of heat released when a substance completely burns in oxygen, a measure of the energy content of a fuel.

Cycloalkanes

Saturated, ring-shaped hydrocarbons with the general formula CnH2n, where n is the number of carbon atoms in the ring.