What is the first vessel to receive absorbed water-soluble vitamins?
a. Hepatic vein b. Mesenteric vein
c. Mesenteric artery d. Hepatic portal vein
Question 2
What is a precursor?
a. A conditionally essential vitamin
b. A sign or symptom of a vitamin deficiency disorder
c. A substance that is used to synthesize another compound
d. A substance that is recycled through the liver and intestines