At very high intensities of exercise, most of the energy the body uses is supplied by ________.
A. muscle protein
B. blood glucose
C. muscle glycogen
D. intramuscular fat
Answer: C
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People in the United States who are meeting their recommended intake for calcium usually are
a. taking calcium supplements. b. consuming liberal amounts of spinach. c. on prescription osteoporosis medications. d. low consumers of phytate-containing foods.
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 4 polypeptide chains d. It has no primary or secondary structure
Provision of vitamin A supplements to children in developing nations reduces the incidence and severity of what disorder?
a. Rickets b. Malaria c. Mal-absorptive syndrome d. Hemolytic anemia
The DRI Committee recommends _____ percent of total calories as the minimum amount of protein
a. 35 b. 5 c. 15 d. 10 e. 20