State the role of pancreatic juice in di | Class 11 Biology Chapter Digestion and Absorption, Digestion and Absorption NCERT Solutions

Question:

State the role of pancreatic juice in digestion of proteins.

Answer:

Pancreatic juice contains a variety of inactive enzymes such as trypsinogen, chymotrypsinogen, and carboxypeptidases. These enzymes play an important role in the digestion of proteins.

Physiology of protein-digestion by pancreatic enzymes:

The enzyme enterokinase is secreted by the intestinal mucosa. It activates trypsinogen into trypsin.

Trypsinogen enterokinase Trypsin + Inactive peptide

Trypsin then activates the other enzymes of pancreatic juice such as chymotrypsinogen and carboxypeptidase.

Chymotrypsinogen is a milk-coagulating enzyme that converts proteins into peptides.

ChymotrypsinogenChymotrypsin

(Inactive) (Active)

Proteins Chymotrypsin Peptides

Carboxypeptidase acts on the carboxyl end of the peptide chain and helps release the last amino acids. Hence, it helps in the digestion of proteins.

Peptides Carboxypeptidase Smaller peptide chain + Amino acids

Thus, in short, we can say that the partially-hydrolysed proteins present in the chyme are acted upon by various proteolytic enzymes of the pancreatic juice for their complete digestion.

Proteins, peptones Trypsin/Carboxypeptidase Dipeptides and proteases

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Comments

Akhil
2020-01-06 17:55:49

Nyc ,but too lenthy...

Rishita
2019-12-28 08:46:33

Lengthy hai. Ishe short hai mere pass

Huma
2019-11-17 16:04:01

Awesome ans but too lenthy can't it be made short

Kahkasha
2019-09-19 13:07:59

Pls easy language me

Muskan banwala
2019-09-15 08:04:06

Unique

sahil
2019-09-09 15:04:51

didi short bhajo na lagbag 3marks ma

sahil
2019-09-09 15:04:19

didi short bhajo na lagbag 3marks ma

Naina
2019-02-06 22:55:37

Nice

Ayush dwivedi
2019-01-17 19:11:17

It's a good answer

Aakanksha Singh
2018-09-21 20:51:13

Great

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Welcome to the NCERT Solutions for Class 11 Biology - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 4: State the role of pancreatic juice in digestion of proteins.....

State the role of pancreatic juice in di | Class 11 Biology Chapter Digestion and Absorption, Digestion and Absorption NCERT Solutions

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