Q5
1 markMCQSection A

Pancreas secretes pancreatic juice which contain certain enzyme that helps in digestion of food. Choose the correct option from the following:

Life Processes
Nutrition in Human Beings — Small Intestine and Pancreatic Enzymes

Options

(A)Trypsin digests emulsified fats and lipase digests proteins.
(B)Trypsin digests proteins and lipase digests emulsified fats.
(C)Trypsin and lipase both digests fats.
(D)Trypsin digests proteins and lipase digests carbohydrates.
Official Answer

B

trypsinlipasepancreatic juiceproteinsemulsified fats

Hint

Recall which pancreatic enzyme acts on proteins and which acts on emulsified fats.

Quick Oral Answer

Trypsin digests proteins and lipase digests emulsified fats — both secreted in pancreatic juice.

Analysis & Explanation

The chapter states directly: 'The pancreas secretes pancreatic juice which contains enzymes like trypsin for digesting proteins and lipase for breaking down emulsified fats.' So trypsin acts on proteins, while lipase acts on fats that have already been emulsified into smaller globules by bile salts, breaking them into fatty acids and glycerol.


(A) Incorrect — it reverses the roles; trypsin does not act on fats and lipase does not act on proteins.

(C) Incorrect — trypsin does not digest fats at all; only lipase acts on fats.

(D) Incorrect — trypsin digests proteins (correct part), but lipase digests fats, not carbohydrates; carbohydrate digestion in the small intestine is carried out by intestinal enzymes acting on complex carbohydrates to give glucose, not by lipase.


Therefore option B correctly pairs each enzyme with its substrate.

Common Mistakes

  1. 1Mixing up which enzyme (trypsin vs lipase) acts on which food component
  2. 2Assuming lipase acts on carbohydrates because pancreatic juice also helps digest carbohydrates via other enzymes

Interesting Facts

Bile from the liver first emulsifies large fat globules into smaller ones, similar to how soap emulsifies dirt, before lipase can act efficiently on them.

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Frequently Asked Questions

How many marks does this question carry in CBSE Class 10 Science 2026?

This question carries 1 mark in the CBSE Class 10 Science 2026 examination.

Which chapter does this question come from in Science?

This question is from the chapter "Life Processes" in the CBSE Class 10 Science syllabus.

What topic does this question cover in Science?

This question covers the topic "Nutrition in Human Beings — Small Intestine and Pancreatic Enzymes" from CBSE Class 10 Science.

What type of question is this in the CBSE Class 10 Science 2026 paper?

This is a MCQ question from Section A in the CBSE Class 10 Science 2026 paper.