Choose the correct statements regarding the gastric juices.

I. Pepsin converts proteins into peptones partially.

II. Hydrochloric acid kills the germs present in food and regulates pH for digestion in the stomach.

III. Mucus protects the stomach wall from the action of digestive juices.

I, II and III are correct

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Only III is correct

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I and III are correct, II is incorrect

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Only I is correct

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Solution

The correct option is A
I, II and III are correct

The glands present in the walls of the stomach secrete substances which play an important role in the process of digestion. These secretions are referred to as gastric juices. The components of gastric juices are pepsin, hydrochloric acid and mucus. Pepsin converts proteins into peptones partially. Hydrochloric acid kills the germs present in the food and regulates pH for digestion in the stomach. Mucus protects the stomach wall from the action of digestive juices.

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Choose the correct statements regarding the gastric juices. I. Pepsin converts proteins into peptones partially. II. Hydrochloric acid kills the germs present in food and regulates pH for digestion in the stomach. III. Mucus protects the stomach wall from the action of digestive juices.

Choose the correct statements regarding the gastric juices.

I. Pepsin converts proteins into peptones partially.

II. Hydrochloric acid kills the germs present in food and regulates pH for digestion in the stomach.

III. Mucus protects the stomach wall from the action of digestive juices.