BIO 123 CH 41 EXAM QUESTIONS AND 100%
CORRECT ANSWERS
The "essential nutrients" for proper human nutrition include ___.
a) all of the amino acids
cellulose
b) active enzymes from plants and/or animals
c) calcium, sodium, potassium, and other minerals
d) glucose - ANSWER c) calcium, sodium, potassium, and other minerals
Birth defects of the neural tube in humans ____.
a) are reduced from about 6% without folic acid supplements in the periconception
interval to about 1% when the supplements were taken
b) are not affected by nutritional considerations during pregnancy
c) are generally found in 10-20% of male babies born in well-developed countries
d) can be prevented by ingestion of more vitamin A during the periconception interval
e) are due to too much sodium in the diet of the pregnant woman - ANSWER a) are
reduced from about 6% without folic acid supplements in the periconception interval to
about 1% when the supplements were taken
In a well-fed human on a Western diet, the richest source of stored chemical energy in
the body is ___.
a) fat in adipose tissue
, b) protein in muscle cells
c) glucose in the blood
d) glycogen in muscle cells - ANSWER a) fat in adipose tissue
Animals that migrate great distances would obtain the greatest energetic benefit of
storing chemical energy as ___.
a) carbohydrates
b) minerals
c) fats
d) proteins - ANSWER c) fats
Some nutrients are said to be "essential" in the diet of certain animals because ____.
a) only certain foods contain them
b) the nutrients are necessary coenzymes
c) only those animals use those nutrients
d) these animals are not able to synthesize these nutrients - ANSWER d) these animals
are not able to synthesize these nutrients
Which of the following correctly matches a physiological process with the correct
vitamin?
a) normal vision - vitamin A
b) blood coagulation - vitamin C
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