What is the name of the vitamin A compound that is active in the visual response?
A) ?opsin
B) ?keratin
C) ?retinal
D) ?carotene
C
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_______________ refers to the alterations from normal anatomy and physiology that occur as a result of disease or injury.
Fill in the blank(s) with the appropriate word(s).
Urea is a by-product of
A) amino acid synthesis. B) amino acid denaturation. C) amino acid breakdown. D) all of the above.
Which of the following is a characteristic of aging and the immune system?
a. Immunity in older people does not seem to be affected by regular exercise. b. In the United States, infectious diseases are a minor cause of deaths in the elderly. c. Immune function does not decline with age in people who maintain good nutrition. d. Antibiotics are often ineffective in treating infections in older people who have deficient immune systems. e. In elderly persons, nutritional status rarely influences immune functioning.
Which of the following is FALSE regarding iron nutrition in pregnancy?
a. The mineral is conserved during this period b. Absorption of the mineral increases due to higher blood transferrin c. Most women enter pregnancy with adequate stores of the mineral d. Stores of the mineral are transferred to the fetus even with low dietary intake