Question

X-ray crystallography is used to see the structure of molecules. Scientists have used this technique to find the structure of cholesterol, an important biological molecule.

Knowledge of the structure of cholesterol is helpful because it may affect
how cholesterol works in the body.
the amount of cholesterol that is considered healthy.
previous ideas about which foods contain cholesterol.
previous explanations of how cholesterol works in the body.

Answer 1

Previous explanations of how cholesterol works in the body.

Knowing the molecular structure helps scientists understand its function and mechanisms, so it can change or refine scientific explanations of how cholesterol acts in the body. It does not directly determine healthy amounts or which foods contain cholesterol.