Question 5
The acid present in the stomach

(a) Kills the harmful bacteria that may enter along with the food.
(b) Protects the stomach lining from harmful substances.
(c) Digests starch into simpler sugars.
(d) Makes the medium alkaline.

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Solution

Role of acid in stomach:
i) Kills the harmful bacteria that may enter along with the food.
ii) Makes the medium acidic which is required for the activation of digestive enzymes.
iii) Soften the food for easy digestion.

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Question 5 The acid present in the stomach (a) Kills the harmful bacteria that may enter along with the food. (b) Protects the stomach lining from harmful substances. (c) Digests starch into simpler sugars. (d) Makes the medium alkaline.

Role of acid in stomach: i) Kills the harmful bacteria that may enter along with the food. ii) Makes the medium acidic which is required for the activation of digestive enzymes. iii) Soften the food for easy digestion.

Question 5
The acid present in the stomach

(a) Kills the harmful bacteria that may enter along with the food.
(b) Protects the stomach lining from harmful substances.
(c) Digests starch into simpler sugars.
(d) Makes the medium alkaline.

Role of acid in stomach:
i) Kills the harmful bacteria that may enter along with the food.
ii) Makes the medium acidic which is required for the activation of digestive enzymes.
iii) Soften the food for easy digestion.