What mechanism of nutrient transport across the placenta utilizes energy (from ATP) and cell membrane receptors?
a. passive diffusion
b. facilitated diffusion
c. active transport
d. pinocytosis
e. endocytosis
Q. 2Quite simply, the key to weight loss is:
a. combining foods correctly at meals.
b. not eating desserts.
c. eating less carbohydrate.
d. consuming fewer kcalories.
Q. 3Decreased conversion of glucose to glycogen and fat, lowered maternal utilization of glucose, and increased liver production of glucose help _____.
a. ensure the mother does not gain excessive weight during the second half of pregnancy
b. ensure a constant supply of fat for maternal energy needs
c. ensure a constant supply of glucose for fetal growth and development
d. ensure that women do not expend too much energy on metabolism and have plenty of energy to support fetal growth
e. promote healthy weight gain for pregnant women
Q. 4Which of the following statements is true regarding fad diets?
a. They are based on credible scientific research.
b. The FDA requires proof that they work and are safe.
c. They usually offer distorted bits of legitimate research, which makes them sound feasible.
d. Scientists have overlooked the obvious facts and a lay person has figured out the key to successful weight loss.
Q. 5The preferred source of fuel for the fetus is _____.
a. glucose
b. fatty acid
c. protein
d. cholesterol
e. fiber
Q. 6Which placental hormone maintains early pregnancy by stimulating the corpus luteum to produce estrogen and progesterone?
a. human placental lactogen
b. human chorionic somatotropin
c. follicle-stimulating hormone
d. human chorionic gonadotropin
e. leptin
Q. 7Which of the following is not one of the three indicators established by obesity experts for evaluating health risks from overweight and obesity?
a. a person's disease risk profile
b. BMI
c. waist circumference
d. diet history
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