Quiz 8 + 9

Why would vitamin A deficiency cause eye infections and blindness? a) Vitamin A maintains epithelial tissues. b) The mucus secreting cells damage the surface of the eye. c) Keratin-producing cells decrease immune function. d) The hard, dry surface protects normal epithelium

a) Vitamin A maintains epithelial tissues.

Which one of the following symptoms is associated with pellagra? a) Dementia b) Dandruff c) Diabetes d) Deafness

a) Dementia

How is vitamin B6 associated with heart disease? a) Vitamin B6 breaks down homocysteine. b) Vitamin B6 removes the LDL-cholesterol from the body. c) Vitamin B6 promotes the formation of HDL-cholesterol. d) Vitamin B6 reduces the blockages found in the blood vessel

a) Vitamin B6 breaks down homocysteine.

What is a role of vitamin C in the body? a) Vitamin C helps to maintain body tissues. b) Vitamin C prevents the common cold. c) Vitamin C is required for energy metabolism. d) Vitamin C promotes iron excretion

a) Vitamin C helps to maintain body tissues.

Which statement is true about the need for dietary supplements? a) Women of child-bearing age need extra folate. b) Supplement use increases overall health in all populations. c) Vitamin A should be given in high doses to the elderly d) Vegans usually need supplements of Vitamin A

a) Women of child-bearing age need extra folate.

What is true about the function of vitamin D? a) Vitamin D inactivates cancerous cells. b) Vitamin D works with parathyroid hormone (PTH) to decrease calcium retention by the kidneys. c) Vitamin D decreases the production of intestinal calcium transport proteins. d) Vitamin D binds to proteins in the cytoplasm of most cells

b) Vitamin D works with parathyroid hormone (PTH) to decrease calcium retention by the kidneys.

Vitamin K deficiency can be caused by: a) reduced exposure to sunlight. b) long term use of antibiotics. c) use of formula instead of breastmilk. d) kidney disease

b) long term use of antibiotics.

What risk might be associated with the overconsumption of fortified foods? a) Fortified foods lose nutrients more easily during cooking. b) Adding nutrients to foods may help reduce deficiency diseases. c) Fortifying food leads to fewer food choices to obtain nutrients. d) Additional nutrient intake may increase the likelihood of toxicity.

d) Additional nutrient intake may increase the likelihood of toxicity.

Why is folic acid supplementation recommended for women of child bearing age? a) Since folic acid is poorly absorbed, additional intake is recommended. b) Folic acid deficiency results from insufficient milk intake. c) All women of child bearing age experience folic acid deficiency. d) Folic acid supplementation reduces the risk of neural tube defect

d) Folic acid supplementation reduces the risk of neural tube defect

Which of the following is a good source of vitamin E? a) Calf's liver b) Skim milk c) Raw tomatoes d) Vegetable oil

d) Vegetable oil