Class 11 Biology - Chapter Digestion and Absorption NCERT Solutions | What would happen if HCl were not secret
What would happen if HCl were not secreted in the stomach?
Hydrochloric acid is secreted by the glands present on the stomach walls. It dissolves bits of food and creates an acidic medium. The acidic medium allows pepsinogen to be converted into pepsin. Pepsin plays an important role in the digestion of proteins. Therefore, if HCl were not secreted in the stomach, then pepsin would not be activated. This would affect protein digestion. A pH of about 1.8 is necessary for proteins to be digested. This pH is achieved by HCl.
More Questions From Class 11 Biology - Chapter Digestion and Absorption
- Q:-
Bile juice contains no digestive enzymes, yet it is important for digestion. Why?
- Q:-
How does butter in your food gets digested and absorbed in the body?
- Q:-
State the role of pancreatic juice in digestion of proteins.
- Q:-
Discuss the main steps in the digestion of proteins as the food passes through different parts of the alimentary canal.
- Q:-
Describe the process of digestion of protein in stomach.
- Q:-
Choose the correct answer among the following:
(a) Gastric juice contains
(i) pepsin, lipase and rennin
(ii) trypsin lipase and rennin
(iii) trypsin, pepsin and lipase
(iv) trypsin, pepsin and renin
(b) Succus entericus is the name given to
(i) a junction between ileum and large intestine
(ii) intestinal juice
(iii) swelling in the gut
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How are polysaccharides and disaccharides digested?
- Q:-
Describe the digestive role of chymotrypsin. What two other digestive enzymes of the same category are secreted by its source gland?
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- Q:-
Answer briefly:
(a) Why are villi present in the intestine and not in the stomach?
(b) How does pepsinogen change into its active form?
(c) What are the basic layers of the wall of alimentary canal?
(d) How does bile help in the digestion of fats?
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