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
