Biomolecules — Revision Notes
BITSAT · Chemistry
Quick revision notes for Biomolecules — key concepts, formulas, and definitions for BITSAT Chemistry preparation.
Revision Notes — Biomolecules
Key concepts, formulas, and definitions from Biomolecules for BITSAT Chemistry preparation.
Key Topics to Revise
10.1 Carbohydrates
- Carbohydrates are optically active polyhydroxy aldehydes or ketones with general formula Cx(H2O)y
- Classification: Monosaccharides (glucose, fructose), Disaccharides (sucrose, maltose, lactose), Polysaccharides (starch, cellulose, glycogen)
- Reducing sugars contain free aldehyde/ketone groups (maltose, lactose) while non-reducing sugars don't (sucrose)
10.2 Proteins
- Proteins are condensation polymers of α-amino acids connected by peptide bonds
- α-amino acids have both -COOH and -NH2 groups attached to the same carbon
- Classification: Neutral (glycine, alanine), Acidic (aspartic acid, glutamic acid), Basic (lysine, arginine, histidine)
10.3 Enzymes
- Enzymes are biological catalysts, mostly globular proteins
- They increase reaction rates by lowering activation energy
- Show high specificity for substrates and products
10.4 Vitamins
- Organic compounds required in small amounts for normal growth and health
- Water-soluble vitamins: B-complex (B1, B2, B6, B12) and C - must be supplied regularly
- Fat-soluble vitamins: A, D, E, K - stored in liver and adipose tissue
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What topics are covered in Biomolecules for BITSAT?
Biomolecules is an important chapter in BITSAT Chemistry. It covers key concepts and formulas that are frequently tested in the exam. Key topics include: 10.1 Carbohydrates, 10.2 Proteins, 10.3 Enzymes, 10.4 Vitamins.
How important is Biomolecules for BITSAT?
Biomolecules is a frequently tested chapter in BITSAT Chemistry. Questions from this chapter appear regularly in previous year papers. There are 65 practice questions available for this chapter.
How to prepare Biomolecules for BITSAT?
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.