After absorption, the end products of carbohydrate and protein digestion enter the:
a. enterohepatic circulation.
b. gastrointestinal circulation.
c. common bile duct.
d. portal blood system.
Question 2
In addition to active transport, a process involved in absorbing food in the small intestine is:
a. pinocytosis.
b. excretion.
c. phagocytosis.
d. electrochemical diffusion.