What is true about night vision?

a. looking into the bright headlights of an approaching car at night is permanently blinding.
b. the regeneration of rhodopsin is delayed when vitamin A is deficient.
c. night blindness is an irreversible symptom of vitamin A deficiency
d. the visual cycle begins when light passes into he eye and strikes the optic nerve.


Ans: d. the visual cycle begins when light passes into he eye and strikes the optic nerve.

Nutritional Science

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A. icebox/refrigerator cookies B. bar cookies C. dropped cookies D. pressed cookies E. molded cookies

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Digestion refers to

A. the chemical breakdown of foods that happens in the mouth, esophagus, and stomach. B. the breakdown of foods into a form that can be absorbed. C. the transfer of nutrients from the small intestine into the blood. D. the process of solid waste elimination.

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The best forms of carbohydrate to consume during exercise are

A) whey protein. B) caesin. C) low-fat, and high-fiber plant protein. D) glucose, sucrose, and maltodextrin.

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Kayla consumes a sugar-frosted doughnut for a snack. In her gastrointestinal tract, the sucrose in the doughnut is digested into

A. maltose and glycogen. B. mannose and galactose. C. glucose and fructose. D. lactose and maltose.

Nutritional Science