Question

level 1
q1
which of the following is true about the role of the mouth during digestion?
a. releases hormones
b. bones release calcium
c. saliva contains an enzyme called amylase that breaks down food
d. intestines take up calcium

Explanation:

• Option A: Hormones are mainly released by endocrine glands, not the mouth.
• Option B: Bones releasing calcium is related to the skeletal system's role in mineral homeostasis, not the mouth's role in digestion.
• Option C: Saliva in the mouth contains amylase which starts the digestion of carbohydrates (breaks down food).
• Option D: Intestines taking up calcium is related to the digestive system's absorption process in the intestines, not the mouth's role.

Answer:

C. Saliva contains an enzyme called amylase that breaks down food