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

👇 Download Here


📝 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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