Carbohydrates proteins lipids nucleic acids

NCERT Biology Class 11, Chapter 9

Carbohydrates proteins lipids nucleic acids NEET Biology MCQ

Last updated: July 30, 2026

Reviewed by MedQGo Editorial Team | Last updated: July 30, 2026

Which of the following is not a known cell-to-cell communication molecule?

Asteroid hormones
Bproteins/peptides
Clipid derivatives
Ddeoxyribonucleic acid

Correct answer: D. deoxyribonucleic acid

Steroid hormones, proteins/peptides, and lipid derivatives are known cell-to-cell communication molecules. Deoxyribonucleic acid (DNA) is not a direct cell-to-cell communication molecule but plays a role in genetic information transfer.

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