The umbilical artery carries blood from the fetus to the placenta and the umbilical vein carries blood from the placenta to the fetus. Which is the correct statement regarding
differences in blood composition between the umbilical artery and vein?
(A) Blood in the umbilical artery contains less glucose than blood in the umbilical
vein.
(B) Blood in the umbilical artery contains less carbon dioxide than blood in the
umbilical vein.
(C) Blood in the umbilical artery contains more deoxygenated blood in the
umbilical vein.
(D) Blood in the umbilical artery contains less urea than blood in the umbilical
vein.

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Solution

The umbilical vein carries oxygenated, nutrient-rich blood(glucose)from the placenta to the fetus, and the umbilical arteries carry deoxygenated, nutrient-depleted blood(urea) from the fetus to the placenta.
Blood in the umbilical artery contains less glucose than blood in the umbilical vein.
Correct Options are A, C, and D are correct.

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