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Chapter Summary

Biomolecules

CBSE · Class 12 · Chemistry

Summary of Biomolecules for CBSE Class 12 Chemistry. Key concepts, important points, and chapter overview.

42 questions24 flashcards5 concepts

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A multi-panel diagram illustrating the four levels of protein structure: primary (amino acid sequence), secondary (alpha-helix, beta-pleated sheet), tertiary (3D folding), and quaternary (multiple pol
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Overview

Biomolecules are the fundamental building blocks of life, composed of non-living atoms and molecules that form living systems. This chapter explores the four major classes of biomolecules - carbohydrates, proteins, nucleic acids, and lipids - along with vitamins, enzymes, and hormones. Understanding

Key Concepts

Optically active polyhydroxy aldehydes or ketones

Optically active polyhydroxy aldehydes or ketones with general formula Cx(H2O)y. Classified into monosaccharides (glucose, fructose), disaccharides (s

Polymers of α

Polymers of α-amino acids connected by peptide bonds. Amino acids are classified as acidic, basic, or neutral, and as essential or non-essential. Prot

Biocatalysts that are mostly globular proteins

Biocatalysts that are mostly globular proteins, highly specific for particular reactions and substrates. They reduce activation energy and are named a

Organic compounds required in small amounts

Organic compounds required in small amounts for normal growth and health. Classified as fat-soluble (A, D, E, K) stored in liver and adipose tissues,

Polynucleotides composed of nucleotides (base +

Polynucleotides composed of nucleotides (base + pentose sugar + phosphoric acid). DNA contains deoxyribose and bases A, T, G, C with double helix stru

Learning Objectives

  • Explain the characteristics and classification of carbohydrates, proteins, nucleic acids, and hormones
  • Classify biomolecules based on their structures and functional groups
  • Differentiate between DNA and RNA in terms of structure and function
  • Describe the role of biomolecules in biological systems
  • Understand the importance of vitamins and enzymes in living organisms

Frequently Asked Questions

What are the important topics in Biomolecules for CBSE Class 12 Chemistry?
Biomolecules covers several key topics that are frequently asked in CBSE Class 12 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Biomolecules — CBSE Class 12 Chemistry?
Start by understanding all key concepts. Practise previous year questions from this chapter. Revise formulas and definitions regularly. Use flashcards for quick revision before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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