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

Previous / historical NCERT chapter

This chapter belongs to a previous NCERT/CBSE curriculum and is not part of the current 2026-27 chapter list. Removed in 2022-23.

Welcome to the NCERT Solutions for Class 11 Biology - Chapter Digestion and Absorption. This page offers a step-by-step solution to the specific question from Exercise 1, Question 4:

State the role of pancreatic juice in digestion of proteins.

. With detailed answers and explanations for each chapter, students can strengthen their understanding and prepare confidently for exams. Ideal for CBSE and other board students, this resource will simplify your study experience.

Question 4:

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 enterokinaseTrypsin + 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.

ChymotrypsinogenChymotrypsinogenChymotrypsin

(Inactive)                                 (Active)

Proteins ChymotrypsinPeptides

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.

PeptidesCarboxypeptidaseSmaller 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, peptonesTrypsin/CarboxypeptidaseDipeptides and proteases

Study Tips for Answering NCERT Questions:

NCERT questions are designed to test your understanding of the concepts and theories discussed in the chapter. Here are some tips to help you answer NCERT questions effectively:

  • Read the question carefully and focus on the core concept being asked.
  • Reference examples and data from the chapter when answering questions about Digestion and Absorption.
  • Review previous year question papers to get an idea of how such questions may be framed in exams.
  • Practice answering questions within the time limit to improve your speed and accuracy.
  • Discuss your answers with your teachers or peers to get feedback and improve your understanding.

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Comments

  • Akhil
  • Jan 06, 2020

Nyc ,but too lenthy...

  • Rishita
  • Dec 28, 2019

Lengthy hai. Ishe short hai mere pass

  • Huma
  • Nov 17, 2019

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

  • Kahkasha
  • Sep 19, 2019

Pls easy language me

  • Muskan banwala
  • Sep 15, 2019

Unique

  • sahil
  • Sep 09, 2019

didi short bhajo na lagbag 3marks ma

  • sahil
  • Sep 09, 2019

didi short bhajo na lagbag 3marks ma

  • Naina
  • Feb 06, 2019

Nice

  • Ayush dwivedi
  • Jan 17, 2019

It's a good answer

  • Aakanksha Singh
  • Sep 21, 2018

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.....

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