Class 11 Biology - Chapter Digestion and Absorption NCERT Solutions | Bile juice contains no digestive enzymes
Bile juice contains no digestive enzymes, yet it is important for digestion. Why?
Bile is a digestive juice secreted by the liver. Although it does not contain any digestive enzymes, it plays an important role in the digestion of fats. Bile juice has bile pigments such as bilirubin and biliverdin. These break down large fat globules into smaller globules so that the pancreatic enzymes can easily act on them. This process is known as emulsification of fats. Bile juice also makes the medium alkaline due to presense of NaHCO3 and also activate lipase.
More Questions From Class 11 Biology - Chapter Digestion and Absorption
- 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
(iv) appendix - Q:-
How are polysaccharides and disaccharides digested?
- Q:- What would happen if HCl were not secreted in the stomach?
- Q:-
Describe the digestive role of chymotrypsin. What two other digestive enzymes of the same category are secreted by its source gland?
- Q:- Given the dental formula of human beings
- 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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