Biology Forums - Study Force

When the nutrient concentration in the fetal blood is greater than the nutrient concentration in the maternal blood, nutrients will likely be transferred against the concentration gradient via:
 a. passive diffusion.
  b. facilitated diffusion.
  c. active transport.
  d. pinocytosis.
  e. exocytosis.

Q. 2

Which of the following is a major function of the placenta?
 a. Hormone and enzyme production
  b. Nutrient and gas exchange between mother and fetus
  c. Removal of waste products from the fetus
  d. Barrier to drugs and alcohol
  e. a, b, and c
  f. all of the above

Q. 3

Why must volume expansion occur BEFORE maternal nutrient stores accumulate?
 a. In order to support large gains in fetal weight
  b. In order to provide the fetus with sufficient energy, nutrients, and oxygen
  c. In order to provide the mother with plenty of fluids
  d. In order to dilute the high concentration of nutrients in pregnant women
  e. In order to make room for growing organs

Q. 4

Which of the following statements is NOT a national health objective for pregnant women or newborns?
 a. Reduce the rate of fetal and infant deaths
  b. Increase abstinence from alcohol during pregnancy
  c. Increase the proportion of women who gain weight appropriately during pregnancy
  d. Reduce post-term births
  e. All of the above ARE national health objectives for pregnant women and newborns

Q. 5

A baby born to a single mom who lost her job and experienced a severe food shortage at the end of her pregnancy will most likely be classified as
 a. very small for gestational age (vSGA).
  b. disproportionately small for gestational age (dSGA).
  c. proportionately small for gestational age (pSGA).
  d. appropriate for gestational age (AGA).

Q. 6

Small for gestational age (SGA) is different than low birthweight because:
 a. low birth weight is <2500 g (5 lb 8 oz), while sga is 10th tile for gestational age.
  b. SGA is <2500 g (5 lb 8 oz), while low birth weight is 10th tile for gestational age.
  c. SGA is <1500 g (3 lb 5 oz), while low birth weight is 10th tile for gestational age.
  d. SGA is 10th tile for gestational age, while low birth weight is <1500 oz).

Answer to #1

c

Answer to #2

e

Answer to #3

b

Answer to #4

d

Answer to #5

b

Answer to #6

a

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