Biology - Study Mode

[#766] Enzyme secreted by stomach digests the food but stomach is not digested by this digestive juice because
Correct Answer

(A) Wall of stomach is lined with mucus

Explanation

Solution: The stomach does not digest itself because it is lined with epithial cells, which produce mucus. This forms a barrier between the lining of the stomach and the contents. Enzymes, which make up part of the digestive juices are also secreted by the stomach wall, from glands with no mucus barrier.

[#767] Where does most digestion take place?
Correct Answer

(C) Small intestine

Explanation

Solution: The majority of chemical digestion occurs in the small intestine. Digested chyme from the stomach passes through the pylorus and into the duodenum.

[#768] Both food and air travel through the
Correct Answer

(A) Pharynx

Explanation

Solution: Air, food and liquid all pass through this common passage, the oropharynx. The two passages separate again here, in the hypopharynx. Food and liquid pass backward into the esophagus on their way to the stomach. Air passes forward through the larynx and into the trachea, on its way to the lungs.

[#769] The enzyme which take part in digestion of milk protein is
Correct Answer

(C) Rennin

Explanation

Solution: The enzyme which take part in digestion of milk protein is rennin.

[#770] Which one of the following is an enzyme ?
Correct Answer

(C) Trypsin

Explanation

Solution: Trypsin is an enzyme.