The chemical name for preformed vitamin A is:

a. beta carotene.
b. rhodopsin.
c. retinaldehyde.
d. retinol.


ANS: D

Nutritional Science

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Body-composition changes associated with aging are irreversible.

Answer the following statement true (T) or false (F)

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Which of the following is true regarding phytochemicals?

a. Supplements have the same benefits as consuming the whole foods. b. Absorption depends on the presence of other phytochemicals and nutrients in foods. c. They work individually. d. The optimal combinations of different types are known.

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Regular vigorous exercise (>50% VO2

max) is more protective against cardiovascular disease than lower-intensity exercise. Indicate whether the statement is true or false

Nutritional Science

After a meal, which hormone is responsible for moving glucose into the body's cells?

A. glucagon B. estrogen C. CCK D. insulin

Nutritional Science