Identify the chemical agent in the stomach that is responsible for killing bacteria present in the food and activating pepsin.

Ammonium carbonate

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Carbonic acid

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Hydrochloric acid

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Hydroiodic acid

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Solution

The correct option is C
Hydrochloric acid

The gastric glands in the stomach give out gastric juices which contain water, hydrochloric acid, and the enzyme pepsin. The hydrochloric acid is responsible for killing the germs which may have entered the body along with the food and it activates the enzyme pepsin. Pepsin converts proteins into a simpler compound called peptones.

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Similar questions

Identify the steps (denoted by numerals) in physiology of digestion in stomach.

i).Food $H C l ⟶ K i l l s B a c t e r i a$ Chyme

ii).Pepsinogen Prorennin $H C l ⟶ A c t i v a t i o n$ Pepsin Rennin

iii).Proteins $P e p s i n ⟶$ Proteases Peptones

iv).Milk Casein $R e n n i n ⟶$ Para casein $C a l c i u m ⟶$ Calcium paracaseinate

Identify the steps (denoted by numerals) in physiology of digestion in stomach.

i).Food $H C l ⟶ K i l l s B a c t e r i a$ Chyme

ii).Pepsinogen Prorennin $H C l ⟶ A c t i v a t i o n$ Pepsin Rennin

iii).Proteins $P e p s i n ⟶$ Proteases Peptones

iv).Milk Casein $R e n n i n ⟶$ Para casein $C a l c i u m ⟶$ Calcium paracaseinate

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