Biomolecules
Madhya Pradesh Board · Class 11 · Biology
Quick revision notes for Biomolecules — Madhya Pradesh Board Class 11 Biology. Key concepts, formulas, and definitions for last-minute revision.
Key Topics to Revise
Chemical Composition of Living Organisms
- Living organisms contain the same elements as non-living matter, but in different proportions
- Carbon, hydrogen, and oxygen are more abundant in living organisms compared to earth's crust
- Chemical analysis involves grinding tissue in trichloroacetic acid to separate acid-soluble and acid-insoluble fractions
Amino Acids and Proteins
- Amino acids are α-amino acids with amino and carboxyl groups on the same carbon
- 20 types of amino acids occur in proteins
- Amino acids are classified as acidic, basic, or neutral based on R groups
Lipids
- Lipids are generally water-insoluble compounds
- Fatty acids have carboxyl group attached to hydrocarbon chain
- Saturated fatty acids have no double bonds, unsaturated have C=C bonds
Carbohydrates and Polysaccharides
- Polysaccharides are long chains of monosaccharides
- Cellulose is homopolymer of glucose, forms plant cell walls
- Starch is energy storage polysaccharide in plants
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Biomolecules covers several key topics that are frequently asked in Madhya Pradesh Board Class 11 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
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