Ch 7 Vitamins

Which of the following is a form of naturally occurring vitamin E?

alpha-tocopherol

Vitamin C is also known as ________ acid.

ascorbic

Folate can be found in the highest levels in which of the following foods?

asparagus

Thiamin deficiency results in which condition?

beriberi

Which of the following is not an antioxidant?

biotin -vitamin C -beta-carotene -vitamin E

Vitamin K plays an essential role in

blood clotting

Abundant in foods from animal sources, ________ is a vitamin-like substance needed to properly utilize fat.

carnitine

The B vitamins act as ________, helping numerous enzymes produce reactions in your cells.

coenzymes

Ascorbic acid acts as a coenzyme and is essential for the production of

collagen

Vitamin C is necessary for which of the following processes?

collagen formation

Naturally occurring vitamin B12 is found in which food?

eggs

A diet deficient in vitamin B6 can result in pernicious anemia.

false

Carotenodermia is a serious toxic reaction to an overdose of vitamin A.

false

The water-soluble vitamins include the B vitamins and vitamin E.

false

Vitamin K is a component of two light-sensitive proteins essential for vision.

false

Carly and Adam have been married for three years and are beginning to think about having children. Which vitamin should Carly make sure she is getting enough of prior to conceiving, in order to reduce the risk of neural tube defects?

folate

The B vitamins ________ and vitamin B12 are needed for healthy red blood cells.

folate

Which of the following vitamins is involved in breaking down homocysteine in the blood?

folate

Which vitamin has been shown to reduce the risk of colon, breast, and pancreatic cancers, as well as reduce the risk of birth defects?

folate

Unstable oxygen-containing molecules that can damage cells and possibly contribute to the increased risk of chronic diseases are called

free radicals

Which is the best way to reduce your chances of catching a cold?

frequent hand-washing

Where is the inactive form of vitamin D converted to the active form?

in the liver and then kidneys

Which people might not benefit from a vitamin supplement?

individuals who regularly eat fortified foods

Vitamin C is plays an important role in the absorption of ________ from plant foods such as grains and cereals.

iron

Which of the following is correct about xerophthalmia?

it is permanent damage to the cornea due to a vitamin A deficiency

The body can synthesize ________ from the amino acid tryptophan.

niacin

Which vitamin has been shown to beneficially alter the serum levels of triglycerides?

niacin

Phytochemicals are ________-derived compounds that are thought to be beneficial to our health.

plant

Which of the following does not accurately describe vitamins?

provide energy -tasteless -needed for growth -organic compounds

Vitamin B6 is a collective name for several related compounds including ________, the major form found in plant foods, and two other forms found in animal food sources.

pyridoxine

The disease of vitamin C deficiency is called

scurvy

Which of the following conditions is not caused by a deficiency of vitamin D?

scurvy -osteoporosis -osteomalacia -rickets

Pellagra is a condition associated with a deficiency of which vitamin?

vitamin B3

Which light-sensitive vitamin is abundant in milk?

vitamin C

Which of the following vitamins cannot be synthesized by your body?

vitamin C

Which supplements may lower the risk of age-related macular degeneration, according to a study conducted by the National Eye Institute?

vitamin c, vitamin e, beta-carotene

Pernicious anemia occurs when there is a deficiency of which vitamin?

B12

The ________ is an organization that provides some guidance for consumers when it comes to labeling dietary supplements.

USP

________ boosts your immune system by helping your body make white blood cells.

Vitamin C

Which vitamin helps bone health by regulating calcium and phosphorus?

Vitamin D

Which of the following vitamins travels in a micelle along with bile and fatty acids?

vitamin A

All the following statements are true about vitamin B12 except that

the ability to absorb this vitamin increases with age -it requires intrinsic factor for absorption to occur -its naturally occurring form is found only in foods from animal sources -when deficient, pernicious anemia may result

________ plays a role in breaking down alcohol in the body.

thiamin

Consuming too much niacin can cause flushing of the skin.

true

Large amounts of vitamin B6 taken through supplements may be associated with nerve damage.

true

The disease that occurs in humans with a thiamin deficiency is called beriberi.

true

Vitamin C is needed to make collagen, the most abundant protein in the human body.

true

Vitamin D helps maintain calcium balance in the blood.

true

Vitamin K is an important factor in blood clotting.

true

Excessive amounts of water-soluble vitamins are excreted in

urine