Biological Classification — Syllabus
CBSE · Class 11 · Biology
What Biological Classification covers in CBSE Class 11 Biology: 4 topics, for the 2026-27 session. Part of the CBSE Class 11 Biology syllabus.
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Topics in Biological Classification
1. Historical Basis of Classification
- Aristotle was the earliest scientist to attempt a scientific basis for classification.
- He classified plants into trees, shrubs and herbs.
- He classified animals into red-blooded and non-red-blooded groups.
2. Kingdom Monera
- Bacteria are the sole members of Kingdom Monera.
- Bacteria are the most abundant microorganisms and occur almost everywhere.
- Bacteria show the most extensive metabolic diversity among many organisms.
3. Kingdom Protista
- All single-celled eukaryotes are placed under Protista.
- The boundaries of Protista are not well defined.
- Protista includes Chrysophytes, Dinoflagellates, Euglenoids, Slime moulds and Protozoans.
4. Kingdom Fungi
- Fungi are a unique kingdom of heterotrophic organisms.
- With the exception of yeasts, fungi are filamentous.
- The body of a fungus consists of hyphae, and the network of hyphae is called mycelium.
Key Concepts
Central concept: Biological Classification
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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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