NCERT Solutions for Class 11 Biology Chapter 2 - Biological Classification

Looking for reliable and easy-to-understand NCERT Solutions for Class 11 Biology Chapter 2? You’ve come to the right place! This chapter, Biological Classification, is a key part of the Class 11 Biology syllabus and forms the foundation for many advanced topics in life sciences. Our step-by-step NCERT solutions will help you grasp concepts faster, clear doubts, and boost your exam preparation.

NCERT Solutions for Class 11 Biology Chapter 2 NCERT Solutions Overview

The NCERT Solutions for Class 11 Biology Chapter 2: Biological Classification offer detailed and accurate answers to all the exercise questions given in the NCERT textbook. These solutions are designed to help students understand the five-kingdom classification system and the distinct features of Monera, Protista, Fungi, Viruses, Viroids, and Lichens.

This chapter lays the groundwork for understanding microbial diversity, evolution, and taxonomy. With the help of these solutions, students can:

• Master the key differences between prokaryotic and eukaryotic organisms.
• Learn classification criteria such as cell structure, mode of nutrition, and body organization.
• Get clarity on confusing topics like fungal reproduction, protistan movement, and viral structures.

Each solution is presented in simple language, aligned with the latest CBSE guidelines, and enriched with scientific explanations and diagrams to ensure conceptual clarity and effective exam preparation.

NCERT Solutions for Class 11 Biology Chapter 2 Biological Classification - Download PDF

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 Answer: The five kingdoms in R.H. Whittaker's classification (1969) are:

1. Monera – includes prokaryotic organisms like bacteria
2. Protista – unicellular eukaryotic organisms like Amoeba
3. Fungi – non-green, saprophytic organisms like mushrooms
4. Plantae – multicellular, autotrophic green plants
5. Animalia – multicellular, heterotrophic animals

 Q2. Differentiate between Monera and Protista.

 Answer:

 Q3. What are lichens? Mention their significance.

 Answer: Lichens are symbiotic associations between a fungus and an alga or cyanobacterium.

• The fungus provides shelter and absorbs moisture.
• The alga/cyanobacterium performs photosynthesis.
  Significance:
• They are bioindicators of air pollution.
• They help in soil formation by breaking rocks.

 Q4. Why are viruses not placed in any of the five kingdoms?

 Answer: Viruses are not classified into any of the five kingdoms because they show characteristics of both living and non-living organisms:

• Living: Inside host cells, they reproduce and mutate.
• Non-living: Outside host, they are inactive, have no cellular structure.
  Thus, they are considered at the borderline of life.

 Q5. What are the major characteristics of the kingdom Fungi?

 Answer:

• Eukaryotic, mostly multicellular (except yeasts)
• Heterotrophic and saprophytic (feed on dead organic matter)
• Cell walls made of chitin
• Reproduce by spores
• Examples: Rhizopus, Aspergillus, Agaricus

Benefits of Solving NCERT Solutions for Class 11 Biology Chapter 2

Studying and solving the NCERT solutions for Chapter 2 – Biological Classification – offers multiple advantages for Class 11 students, especially those aiming to build a strong foundation in Biology for school exams and competitive exams like NEET.

1. Strengthens Conceptual Understanding: The solutions break down complex biological terms such as Monera, Protista, Fungi, and Viruses into simple explanations. This helps students understand the logic behind biological classification rather than just memorizing facts.

2. Exam-Oriented Preparation: Each answer is crafted according to CBSE’s marking scheme, helping students frame accurate and point-wise responses. This increases the chances of scoring well in school exams and class tests.

3. Helps with NEET Foundation: Many NEET Biology questions are based on NCERT lines. These solutions highlight and explain textbook content, helping students prepare early for NEET and other medical entrance exams.

4. Boosts Confidence and Reduces Exam Stress: When students consistently solve textbook questions using these well-structured solutions, they gain confidence in attempting long and short answer questions in exams.

5. Provides Clarity on Diagrams and Examples: Biological Classification includes visual topics like fungi structure, virus shapes, and classification charts. NCERT solutions reinforce these concepts with appropriate diagram references.

6. Saves Revision Time: Each solution includes highlighted keywords and concise definitions, which are perfect for last-minute revision before exams or unit tests.

7. Supports Self-Study and Homework Completion: These NCERT solutions act as a reliable guide for students doing self-study or completing homework and assignments without external help.

8. Builds a Strong Base for Higher Studies: A clear understanding of taxonomy and classification at this stage forms the base for advanced topics in microbiology, ecology, and evolution in Class 12 and beyond.