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Chapter 9 of 19
Chapter Summary

Biomolecules

ICSE · Class 11 · Biology

Summary of Biomolecules for ICSE Class 11 Biology. Key concepts, important points, and chapter overview.

103 questions44 flashcards5 concepts

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A flowchart illustrating the process of analyzing chemical composition of living tissues, showing how grinding tissue in trichloroacetic acid and straining separates components into an acid-soluble fr
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Overview

Biomolecules are the chemical substances present in living cells and tissues. They include inorganic materials such as water and salts, and organic compounds such as carbohydrates, lipids, amino acids, proteins, nucleotides, nucleic acids, enzymes, and vitamins. Living matter contains a much higher

Key Concepts

The collection of various types

The collection of various types of molecules in a cell is called the cellular pool. It includes inorganic materials such as water, salts, and mineral

Micromolecules have molecular weight less than

Micromolecules have molecular weight less than one thousand dalton. Macromolecules have molecular size above 10,000 dalton. Micromolecules include wat

Primary metabolites include carbohydrates

Primary metabolites include carbohydrates, fats, amino acids, proteins, and nucleic acids. Secondary metabolites include alkaloids, terpenoids, phenol

Carbohydrates are broadly defined as polyhydroxy

Carbohydrates are broadly defined as polyhydroxy aldehydes or ketones and their derivatives, or substances that yield one of these compounds on hydrol

Monosaccharides are simple sugars that cannot

Monosaccharides are simple sugars that cannot be hydrolysed into smaller units. They possess a free aldehyde or ketonic group and two or more hydroxyl

Learning Objectives

  • Understand the chemical composition of living cells
  • Distinguish between micromolecules and macromolecules
  • Classify carbohydrates, proteins, lipids, and enzymes
  • Explain the structure and functions of major biomolecules
  • Describe amino acids, peptide bonds, and levels of protein structure

Frequently Asked Questions

What are the important topics in Biomolecules for ICSE Class 11 Biology?
Key topics in Biomolecules include Pie chart showing the percentage composition of elements in human body and living organisms, Mind map showing the classification of carbohydrates into monosaccharides, oligosaccharides, and polysaccharides with examples, Classification of monosaccharides by number of carbon atoms and functional groups. These are the concepts ICSE Class 11 examiners draw on most — study them first, then practise related questions.
How to score full marks in Biomolecules — ICSE Class 11 Biology?
Understand the core concepts first, then work through the 103 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall 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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