Biomolecules — Revision Notes
CUET (UG) · Biology
Quick revision notes for Biomolecules — key concepts, formulas, and definitions for CUET (UG) Biology preparation.
Revision Notes — Biomolecules
Key concepts, formulas, and definitions from Biomolecules for CUET (UG) Biology preparation.
Key Topics to Revise
Chemical Analysis of Living Tissues
- Living tissues contain the same elements as Earth's crust but in different proportions
- Human body composition: Oxygen (65%), Carbon (18.5%), Hydrogen (10.5%), Nitrogen (3.3%), others (2.7%)
- Chemical analysis involves treating tissue with 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 proteinaceous amino acids are used for protein synthesis
- Classification: Non-polar, polar uncharged, positively charged, negatively charged
Carbohydrates
- General formula: Cₙ(H₂O)ₙ, though some exceptions exist
- Classification: Monosaccharides, oligosaccharides, polysaccharides
- Monosaccharides can be aldoses (aldehyde group) or ketoses (ketone group)
Lipids
- Insoluble in water but soluble in non-polar organic solvents
- Composed mainly of carbon, hydrogen, and small amounts of oxygen
- Can form emulsions - colloidal solutions in water
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What topics are covered in Biomolecules for CUET (UG)?
Biomolecules is an important chapter in CUET (UG) Biology. It covers key concepts and formulas that are frequently tested in the exam. Key topics include: Chemical Analysis of Living Tissues, Amino Acids and Proteins, Carbohydrates, Lipids.
How important is Biomolecules for CUET (UG)?
Biomolecules is a frequently tested chapter in CUET (UG) Biology. Questions from this chapter appear regularly in previous year papers. There are 45 practice questions available for this chapter.
How to prepare Biomolecules for CUET (UG)?
Start by understanding the core concepts, then solve practice questions. Focus on formulas and their applications. Use revision notes for quick review before the exam.