The fermentation of fiber and sugar alcohols within the colon produces _____, which are used directly by the bacteria and by the colon for its own tissue growth.
a. amino acids
b. long-chain fatty acids
c. short-chain fatty acids
d. sterols
Question 2
The absorption of B12 can only occur in the:
a. ileum.
b. jejunum.
c. duodenum.
d. fundus.