Comprehensive notes, solved MCQs, and Short Questions for Class 9 Biology Chapter 6 Biomolecules. Covers Carbohydrates, Proteins, Lipids, DNA, RNA, and Metabolism.
Biochemistry: Study of chemical processes within living organisms. Molecular Biology: Study of structure and function of biomolecules.
Biomolecules: Molecules produced by organisms. Major types: Carbohydrates, Lipids, Proteins, Nucleic Acids (DNA & RNA). They make up the structure of organelles and cells.
All chemical reactions in an organism.
Organic compounds with Carbon, Hydrogen, Oxygen (ratio of H:O is 2:1). General formula: $C_n(H_2O)_n$.
Polymers of Amino Acids. Most abundant biomolecule in cells. Functions include:
Structure: Made of Amino Acids (Amino group, Carboxyl group, Hydrogen, R-group). 20 common types found in proteins.
Insoluble in water, soluble in organic solvents. Composed of Glycerol and Fatty Acids.
Polymers of Nucleotides (Pentose sugar + Nitrogenous base + Phosphate).
Central Dogma: DNA -> Transcription -> mRNA -> Translation -> Protein.