Describe the main difference between provitamins and preformed vitamins
What will be an ideal response?
Provitamins are vitamin precursors that are converted to vitamins in the body. Preformed vitamins are the vitamins that are found in food.
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Which of the following is a characteristic of iron transport?
a. Albumin is the major iron transport protein in the blood b. Transferrin in the blood carries iron to the bone marrow c. Hemochromatosis results from an inability to absorb and transport iron d. Ferritin functions by transporting iron from the spleen to the bone marrow e. Chelation is used to increase the bioavailability of iron.
Solanine _____
a. has caused hundreds of deaths b. can give you a stomachache c. causes vitamin deficiency diseases d. can cause konzo e. in small amounts is harmless
To avoid cryptosporidiosis in the HIV-infected client, the client should be taught:
a. to use bottled water because its contents are sterile. b. that bottled water does not have an expiration date. c. that freezing destroys any contamination in water (as in ice cubes). d. to boil tap water for one minute before using it if its quality for safety is unknown.
Two nutrients that can best boost the immune system are:
a. vitamins A and B12. b. vitamin C and zinc. c. iron and selenium. d. iodine and copper.