Why are humans unable to digest fiber, and why is this ...

[daltonest1984]

Why are humans unable to digest fiber, and why is this beneficial?

Question 2

The first trimester includes the:
 a. entire embryonic period only.
  b. entire embryonic period and part of the fetal period.
  c. entire embryonic period and fetal period.
  d. entire fetal period.

[Kingjoffery]

Answer to Question 1

Fiber contains -glycosidic bonds that are resistant to digestive enzymes, so fiber passes intact (undigested) through the small intestine to the large intestine. Intestinal bacteria break down the fiber, producing gas, lipids, and other substances that nourish the cells that line the colon. Fiber prevents the overgrowth of unhealthy (pathogenic) bacteria by promoting the growth of healthy bacteria.

Answer to Question 2

b

[daltonest1984]

Thank you!

[Kingjoffery]

Always glad to help...