Class 11 Biology Chapter 2 – Biological Classification Study Material PDF Download | English & Tamil Medium | NEET 2027 Preparation | NEET Biology Tamil
Class 11 Biology Chapter 2 – Biological Classification Study Material PDF Download | English & Tamil Medium | NEET 2027 Preparation | NEET Biology Tamil
Download Class 11 Biology Chapter 2 Biological Classification Notes PDF in English & Tamil Medium for NEET 2027. NCERT notes, PYQs, MCQs & solutions.
Introduction
Welcome to NEET Biology Tamil – your free learning platform for NEET, CBSE, and Tamil Nadu State Board Biology preparation.
In this post students can download Class 11 Biology Chapter 2 – Biological Classification study materials in both English Medium and Tamil Medium.
These materials are very useful for NEET 2027 aspirants, CBSE students, and Tamil Nadu State Board students.
NEET Syllabus
📚 Chapter Name
English:
Class 11 Biology Chapter 2: Biological Classification
Tamil:
வகுப்பு 11 உயிரியல் பாடம் 2 : உயிரின வகைப்பாடு
📌 Available Study Materials
✅ Complete Chapter Notes – English Medium
✅ முழுமையான குறிப்புகள் – தமிழ் வழி
✅ NCERT Based NEET Notes
✅ Important Definitions
✅ Important Diagrams
✅ Important Tables
✅ Mind Maps / Short Notes
✅ Previous Year NEET Questions
✅ Chapter Wise Practice MCQs
✅ Answer Key with Detailed Solutions
About Chapter – Biological Classification
Biological Classification explains how living organisms are grouped based on their similarities and differences.
Important concepts covered:
🔹 Need for classification
🔹 Two Kingdom Classification
🔹 Five Kingdom Classification
🔹 Kingdom Monera
🔹 Kingdom Protista
🔹 Kingdom Fungi
🔹 Viruses, Viroids and Lichens
Important scientists:
🔬 Carolus Linnaeus – Two Kingdom Classification
🔬 R.H. Whittaker – Five Kingdom Classification
🔬 Carl Woese – Three Domain Classification
🔬 D.J. Ivanowsky – Discovery of Virus
🔬 M.W. Beijerinck – Virus studies
Important examples:
✔ Nostoc
✔ Anabaena
✔ Mycoplasma
✔ Amoeba
✔ Paramecium
✔ Euglena
✔ Rhizopus
✔ Agaricus
This chapter is highly important for direct NCERT based NEET questions.
🔥 NEET 2027 Importance of This Chapter
Biological Classification is a high scoring chapter in NEET Biology.
Previous Year NEET Question Trend:
NEET 2022 – 4 Questions
NEET 2023 – 3 Questions
NEET 2024 – 4 Questions
NEET 2025 – 3 Questions
NEET 2026 – 3 Questions
Students should focus on NCERT tables, examples and characteristic features.
⭐ Important NEET 2027 Topics From This Chapter
⭐ Five Kingdom Classification
⭐ Kingdom Monera Characteristics
⭐ Archaebacteria & Eubacteria
⭐ Cyanobacteria
⭐ Mycoplasma
⭐ Protista Classification
⭐ Fungi Classification
⭐ Phycomycetes, Ascomycetes, Basidiomycetes
⭐ Deuteromycetes
⭐ Viruses and Viroids
⭐ Lichens
📥 Download Study Material PDF
📘 Class 11 Biology Chapter 2 Biological Classification Notes – English Medium PDF
👇 Download Here
📗 வகுப்பு 11 உயிரியல் பாடம் 2 உயிரின வகைப்பாடு குறிப்புகள் – Tamil Medium PDF
📝 NEET Previous Year Solved Questions (with Exam Name & Year)
Question 1 (NEET 2026)
Five Kingdom Classification was proposed by:
(A) Linnaeus
(B) Darwin
(C) R.H. Whittaker
(D) Carl Woese
Question 2 (NEET 2025)
Smallest living cells without a cell wall are:
(A) Bacteria
(B) Mycoplasma
(C) Virus
(D) Cyanobacteria
Question 3 (NEET 2025)
Methanogens belong to:
(A) Eubacteria
(B) Archaebacteria
(C) Protista
(D) Fungi
Question 4 (NEET 2024)
The cell wall of fungi is mainly composed of:
(A) Cellulose
(B) Peptidoglycan
(C) Chitin
(D) Protein
Question 5 (NEET 2024)
Association between algae and fungi is called:
(A) Mycorrhiza
(B) Lichen
(C) Parasite
(D) Saprophyte
Question 6 (NEET 2023)
Viroids contain:
(A) DNA + Protein coat
(B) RNA without protein coat
(C) DNA without protein coat
(D) RNA with capsid
Question 7 (NEET 2023)
Agaricus belongs to:
(A) Phycomycetes
(B) Ascomycetes
(C) Basidiomycetes
(D) Deuteromycetes
Question 8 (NEET 2022)
Blue green algae belong to:
(A) Protista
(B) Cyanobacteria
(C) Fungi
(D) Plantae
Question 9 (NEET 2022)
Euglena is placed under:
(A) Monera
(B) Protista
(C) Fungi
(D) Animalia
Question 10 (NEET 2022)
Viruses were discovered by:
(A) Whittaker
(B) Linnaeus
(C) Ivanowsky
(D) Mendel
✅ Answer Key + Detailed Solutions
1. Answer: C – R.H. Whittaker
Explanation: R.H. Whittaker proposed Five Kingdom Classification in 1969.
2. Answer: B – Mycoplasma
Explanation: Mycoplasma are the smallest living cells and lack a cell wall.
3. Answer: B – Archaebacteria
Explanation: Methanogens are methane producing archaebacteria found in anaerobic conditions.
4. Answer: C – Chitin
Explanation: Fungal cell walls are mainly made up of chitin.
5. Answer: B – Lichen
Explanation: Lichen is a symbiotic association between algae and fungi.
6. Answer: B – RNA without protein coat
Explanation: Viroids are infectious RNA particles without a protein coat.
7. Answer: C – Basidiomycetes
Explanation: Agaricus (mushroom) belongs to Basidiomycetes.
8. Answer: B – Cyanobacteria
Explanation: Blue green algae are photosynthetic bacteria called cyanobacteria.
9. Answer: B – Protista
Explanation: Euglena is a unicellular eukaryotic organism placed under Protista.
10. Answer: C – Ivanowsky
Explanation: D.J. Ivanowsky discovered viruses in tobacco plants.
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