Chapter 8

A vitamin that combines with and activates an enzyme is known as a(n)

coenzyme

a deficiency of fat-soluable vitamins may result from

cystic fibrosis use of weight-loss medications that interfere with fat absorpotion use of mineral oil as a laxative

Gabe is a nutrition student who is learning that a balanced diet involves consuming foods that have a variety of vitamins in them every day. Why is it advisable to consume vitamins every day?

The body has limited storage capacity for many vitamins, so they should be consumed daily in the diet.

vitamin d

increases calcium absorption

vitamin c

increases iron absorption

True or False: Minerals are destroyed by exposure to heat.

false

vitamins A, D, E, and K are considered to be ____ vitamins

fat soluable

the body is able to store which group of vitamins

fat soluable vitamins

water-soluble vitamins are not usually stored because they are

filtered and excreted by the kidneys

zinc

decreases copper absorption

which of the fat-soluble vitamins is most often associated with toxicity

vitamin A

which of the following is an example of a micronutrient

vitamin C

of the fat-soluble vitamins, a deficiency of ___ is mostly likely because body stores are low

vitamin K

Vitamins can be destroyed by exposure to all of the following EXCEPT

water