BIOL 685 Midterm

subject Type Homework Help
subject Pages 3
subject Words 447
subject Authors Eleanor Noss Whitney, Sharon Rady Rolfes

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page-pf1
1) What is the composition of lactose?
a. two glucose units
b. two fructose units
c. one glucose and one fructose unit
d. one glucose and one galactose unit
e. two galactose units
2) A newly fertilized egg is known as a(n)
a. fetus.
b. ovum.
c. zygote.
d. embryo.
e. blastocyst.
3) When you are under physical stress, what hormone is released quickly to stimulate
an increase in blood glucose concentration?
a. insulin
b. secretin
c. glucogen
d. epinephrine
e. noradrenaline
4) Which of the following increases the risk of macrosomia?
a. Folate deficiency
b. Prepregnancy obesity
c. Postpregnancy infection
d. Gestational oxygen deprivation
e. Very young maternal age
5) What is the immediate precursor for the eicosanoids?
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a. Glucose
b. Hormones
c. Fatty acids
d. Cholesterol
e. Lipases
6) Approximately how many infants each year are born in the United States with fetal
alcohol syndrome?
a. 2,000
b. 4,000
c. 6,000
d. 12,000
e. 18,000
7) The animal version of vitamin D is known as
a.ergocalciferol.
b.foliocalciferol.
c.cholecalciferol.
d.phyllocalciferol.
e.xanthociferol.
8) Worldwide, how many preschool age children go blind each year due to vitamin A
deficiency?
a.250,000
b.500,000
c.750,000
d.1,000,000
e.1,250,000
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9) Which statement describes a feature of trans-fatty acids?
a. In nature, most double bonds are trans.
b. Hydrogenation converts trans-fatty acids to cis-fatty acids.
c. The conversion of cis-fatty acids to trans-fatty acids is inhibited by the presence of
antioxidants.
d. In the body, trans-fatty acids are metabolized more like saturated fats than like
unsaturated fats.
e. The hydrogen atoms are located on the same side of a double bond.
10) Which of the following is a characteristic of nutrition and cataract formation?
a. Obese and lean people have the same risk for cataracts.
b. Adequate intakes of biotin and inositol seem to delay the onset of cataract formation.
c. Nutrition seems to play little, if any, role in the onset of cataracts.
d. Vitamin C supplements in doses of 1,000 mg for several years appear to raise the risk
for cataracts.
e. Antioxidant supplements appear to slow the progression of cataracts.
11) What is the life expectancy of black males and females in the United States?
a. 72 (males), 78 years (females)
b. 78 (males), 85 years (females)
c. 81 (males), 86 years (females)
d. 85 (males), 89 years (females)
e. 90 (males), 93 years (females)

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