Biomolecules
CBSE · Class 11 · Biology
Summary of Biomolecules for CBSE Class 11 Biology. Key concepts, important points, and chapter overview.
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Overview
Biomolecules are the chemical compounds present in living organisms. Living tissues contain both inorganic and organic components, but the major focus of the chapter is on organic compounds such as amino acids, lipids, sugars, nucleotides, proteins, polysaccharides, and nucleic acids. Chemical compo
Key Concepts
Elemental analysis of living matter shows
Elemental analysis of living matter shows common elements such as carbon, hydrogen, oxygen, nitrogen, sulphur, sodium, calcium, and magnesium. The rel
Compounds with molecular weights from about
Compounds with molecular weights from about 18 to 800 daltons form the acid-soluble pool. The acid-insoluble fraction contains proteins, nucleic acids
Primary metabolites are common compounds found
Primary metabolites are common compounds found in animal tissues, such as amino acids, sugars, fatty acids, glycerol, nucleotides, nucleosides, and ni
Amino acids are α
Amino acids are α-amino acids with an amino group and a carboxyl group on the same α-carbon. They have four substituents: hydrogen, carboxyl group, am
Proteins are polypeptides made of amino
Proteins are polypeptides made of amino acids linked by peptide bonds. They are heteropolymers, not homopolymers. Amino acids in proteins may be essen
Learning Objectives
- Understand the chemical composition of living tissues
- Distinguish between primary and secondary metabolites
- Classify biomolecules into micromolecules and macromolecules
- Describe amino acids, lipids, nucleotides, proteins, polysaccharides, and nucleic acids
- Explain protein structure at four levels
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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