Nutrition CH.11 questions

Which of the following is a feature of vitamin D synthesis?

Dark-skinned people require longer sunlight exposure than light-skinned people to synthesize equivalent amounts of vitamin D

What is one symptom of Vitamin E deficiency in premature babies?

Erythrocyte hemolysis

Which of the following is not a possible effect of excess intake of vitamin A?

Excess bleeding

Which of the following is a feature of osteocalcin?

It requires vitamin K to bind to bone-forming minerals

How is vitamin E thought to play a role in reducing the risk of heart disease?

It slows oxidation of low-density lipoproteins

Which of the following is not a way that phytochemicals can prevent disease?

Lowers blood pressure

Which of the following helps much of the world's population to maintain adequate vitamin D status?

Outdoor exposure of the skin to sunlight

Which population group is at highest risk for vitamin E deficiency?

Premature babies

What population group is at highest risk for osteomalacia?

Adult women

Which of the following is a feature of vitamin A in foods?

Chlorophyll in dark green leafy vegetables masks the presence of beta-carotene

Which of the following disorders may result from vitamin E deficiency in people?

erythrocyte hemolysis

What population group has the highest risk for vitamin K deficiency?

newborns

Substances that promote oxidation are usually termed

prooxidants

Which of the following is a characteristic of free radicals?

They arise from normal metabolic reactions

Why are vitamin A supplements not recommended for pregnant women in the first trimester?

They could cause birth defects

A child with bowed legs is likely deficient in vitamin

Vitamin D

The main function of vitamin E in the body is to act as a(n)

antioxidant

Which of the following food substances can be converted to vitamin A in the body?

beta-carotene

In what chief capacity does vitamin K function?

blood clotting

Which of the following vitamins is synthesized by intestinal bacteria?

Vitamin K

Which vitamin interferes with the action of Coumadin?

Vitamin K

Which vitamin is routinely given as a single dose to newborns?

Vitamin K

Which of the following is a feature of vitamin K?

Vitamin K participates in metabolism of bone proteins