The stomach is protected from digesting itself by producing ________.
A) bicarbonate only when food is in the stomach
B) a thick layer of mucus to coat the lining of the stomach
C) hydroxyl ions to neutralize the acid
D) antipepsin that destroys digestive substances
Correct Answer:
Verified
Q33: Saliva contains _.
A)an amylase
B)mucus
C)intrinsic factor
D)an amylase and
Q34: Which substances can be absorbed in the
Q35: The salivary glands produce about _ cup(s)of
Q36: Heartburn is caused by _.
A)acid surrounding the
Q37: Villi are found mainly in the _.
A)large
Q39: Muscular waves in the stomach mix and
Q40: The small intestine is divided into three
Q41: Fiber and starches not digested in the
Q42: Probiotics may be most useful in treating
Q43: Which of the following is NOT an
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