Dirk is a bodybuilder. His daily intakes of carbohydrate and fat meet his body needs, but his daily protein intake is about twice his body needs. Dirk's excess protein intake is
A) being used for gluconeogenesis.
B) contributing to an increase in his body's synthesis of muscle mass.
C) contributing to an increase in his body's synthesis of fatty acids.
D) being excreted from his body in urine in the form of urea.
Q. 2Scurvy, pellagra, goiter, rickets, and night blindness are all
A) treatable with vitamin A supplementation.
B) conditions that disproportionately affect children.
C) micronutrient deficiency diseases.
D) linked to poor carbohydrate consumption.
Q. 3Digestion begins in the
A) small intestine. B) mouth. C) esophagus. D) stomach.
Q. 4In order to be used to produce energy for the body, proteinunlike carbohydrates and lipidsmust first be stripped of
A) hydrogen. B) oxygen. C) nitrogen. D) carbon.
Q. 5Infant mortality is defined as the death of
A) a fetus before birth. B) infants between birth and 1 year of age.
C) any child before age 3. D) newborns between birth and 28 days of age.
Q. 6Vitamin D acts as a hormone.
Indicate whether the statement is true or false
Q. 7The small intestine is well equipped to carry out the majority of nutrient absorption in the GI tract because it
A) has an extensive surface area with specialized absorptive cells.
B) is a direct link to the stomach and large intestine.
C) secretes its own digestive enzymes.
D) has a lining made up of parietal cells and chief cells.
Q. 8Using a sunscreen with SPF 8 or greater can inhibit the synthesis of vitamin D.
Indicate whether the statement is true or false
Q. 9The end products of deamination are ammonia and
A) carbon dioxide. B) ATP. C) nitrogen. D) a keto acid.
Q. 10What is the primary cause of malabsorption in people with celiac disease?
A) damage to the lining of the esophagus B) ulceration of the large intestine
C) an allergic reaction throughout the GI tract D) erosion of the villi of the small intestine
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