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Biomolecules

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2026
In the given pentapeptide, find out an essential amino acid $(\mathrm{Y})$ and the sequence present in the pentapeptide:
JEE Main Chemistry Medium
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Q JEE MAIN_2026_
Structures of four disaccharides are given below. Among the given disaccharides, the non-reducing sugar is :
JEE Main Chemistry Easy
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Q JEE MAIN 2026
The number of possible tripeptides formed involving alanine (ala), glycine (gly) and valine (val), where no amino acid has been used more than once is:
JEE Main Chemistry Easy
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Q JEE MAIN 2026
Both human DNA and RNA are chiral molecules. The chirality in DNA and RNA arises due to the presence of
JEE Main Chemistry Easy
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Q JEE MAIN 2026
From the given following (A to D) cyclic structures, those which will not react with Tollen's reagent are :
JEE Main Chemistry Medium
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Q JEE MAIN 2026
The correct statements are:
A. Activation energy for enzyme catalysed hydrolysis of sucrose is lower than that of acid catalysed hydrolysis.
B. During denaturation, secondary...
JEE Main Chemistry Easy
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Q JEE MAIN 2026
Given below are two statements:
Statement I: Sucrose is dextrorotatory. However, sucrose upon hydrolysis gives a solution having mixture of products. This solution shows...
JEE Main Chemistry Easy
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Q JEE MAIN 2026
Match List - I with List - II.

Choose the correct answer from the options...
JEE Main Chemistry Medium
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Q JEE MAIN_2026_
Identify the correct statements. A. Arginine and Tryptophan are essential amino acids. B. Histidine does not contain heterocyclic ring in its structure. C. Proline is...
JEE Main Chemistry Medium
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Q JEE-Advanced 2025
A linear octasaccharide (molar mass $=1024 \mathrm{~g} \mathrm{~mol}^{-1}$ ) on complete hydrolysis produces three monosaccharides: ribose, 2-deoxyribose and glucose. The amount of 2-deoxyribose formed is...
JEE Advance Chemistry Easy
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