Question

what is the role of bile? select one a. emulsify fats b. break down proteins c. regulate ph d. break down starches e. stimulate the gallbladder

Explanation:

Bile is a substance produced by the liver and stored in the gallbladder. Its main role in digestion is to emulsify fats. Emulsification is the process of breaking large fat globules into smaller droplets, which increases the surface area for fat - digesting enzymes to act on. Option B is incorrect because breaking down proteins is the job of enzymes like pepsin (in the stomach) and proteases (in the small intestine). Option C is incorrect as bile does not have a major role in regulating pH. Option D is incorrect because breaking down starches is the function of enzymes like amylase. Option E is incorrect as the gallbladder is stimulated to release bile (not the other way around) by factors like the presence of fat in the small intestine.

Answer:

A. Emulsify fats