Regarding digestion in the stomach:
"How is pepsin involved? Describe the pH of the stomach.
How is smooth muscle involved here? What is chyme?"
a. Pepsin helps in carbohydrate digestion; the pH is alkaline.
b. Pepsin aids in protein digestion; the pH is acidic.
c. Pepsin is involved in fat breakdown; the pH is neutral.
d. Pepsin contributes to fiber digestion; the pH is basic.