1) What percent of the total iron content of a normal diet is heme iron?
a. 1
b. 5
c. 10
d. 15
e. 20
2) Which of the following is associated with bifidus factors?
a. Increased iron absorption
b. Increased bacterial growth
c. Decreased allergy protection
d. Decreased hormone production
e. Impaired immune response
3) Which of the following is a feature of hemoglobin?
a. It has no tertiary structure.
b. It holds the mineral calcium.
c. It is constructed of four polypeptide chains.
d. It has no primary or secondary structure.
e. It is a ring protein.
4) Which of the following describes the nutrient needs of older people?
a. They vary according to individual histories.
b. They remain the same as in young adult life.
c. They increase; therefore, supplementation is required.
d. They decrease for vitamins and minerals due to changes in body composition.
e. They rarely change from middle-age onward.
5) Keshan disease risk increases with a deficiency of
a. copper.
b. selenium.
c. manganese.
d. molybdenum.
e. rubidium.
6) The study of how food interacts with genes is known as ____.
a. nutritional genomics
b. chromosomal nutrition
c. nucleotide expression
d. mutagenic expression
e. personalized nutrition
7) Of the following, which would most readily induce a vitamin K deficiency?
a.Achlorhydria
b.Antibiotic therapy
c.Presence of oxalic acid in food
d.Insufficient intake of green leafy vegetables
e.High-fat, high-protein diet
8) If you were to exercise continuously, about how long would glycogen stores last?
a. a few minutes
b. a few hours
c. about 12 hours
d. about 1 day
e. about 3 days
9) A food label ingredient list reads in the following order: wheat flour, vegetable
shortening, sugar, salt, and cornstarch. What item would be found in the SMALLEST
amount in this food?
a.salt
b.sugar
c.cornstarch
d.wheat flour
e.vegetable shortening
10) Which of the following is a characteristic of iron deficiency in children?
a. It affects brain function before anemia sets in.
b. It rarely develops in those with high intakes of milk.
c. It is the primary factor in tension-fatigue syndrome.
d. Mild deficiency enhances mental performance by lowering physical activity level,
thereby leading to increased attention span.
e. Children who had iron deficiency as infants recover completely when iron levels are
normalized.
11) Approximately what fraction of an average teenager’s daily energy intake is derived
from snacks?
a. 1/4
b. 1/3
c. 1/2
d. 2/3
e. 3/4
12) Which of the following is a feature of vitamin E?
a.The vitamin functions as a hormone-like substance.
b.Toxicity symptoms include bone abnormalities.
c.Deficiencies occur from inability to absorb dietary lipids.
d.Important food sources include enriched breads and pasta.
e.The RDA is based on the tocopherols and the tocotrienols.
13) What structure functions to prevent entrance of food into the trachea?
a. Tongue
b. Epiglottis
c. Cardiac sphincter
d. Trachea sphincter
e. Upper esophageal sphincter