Courses
CBSE Class 11 Biology Chapter 2 Worksheet - Biological Classification
By Swati Singh
|
Updated on 15 Sep 2025, 16:48 IST
Download a free PDF of Class 11 Biology Chapter 2: Biological Classification Worksheet (Set A). These worksheets are prepared according to the latest CBSE syllabus and exam pattern to help students and teachers.
Students can practice important questions and answers from Chapter 2 to strengthen their understanding of key topics.
Worksheets are designed to improve knowledge and problem-solving skills for Class 11 Biology.
Free printable worksheets in PDF format are available, prepared by subject teachers as per the latest NCERT textbooks and guidelines.
Regular practice of these worksheets will help students score better in tests and school exams.
Worksheet – Class 11 Biology, Chapter 2: Biological Classification
Students are advised to download the worksheet PDF for practice.
Loading PDF...
This set of questions with solutions will serve as a self-assessment tool and ensure thorough preparation before exams.
Class 11 Biology – Worksheet for Chapter 1: The Living World
Section A: Fill in the Blanks
Five kingdom classification was proposed by __________.
__________ are known as the "blue-green algae".
The cell wall of fungi is made up of __________.
__________ are called "amphibians of the plant kingdom".
Best Courses for You
JEE
NEET
Foundation JEE
Foundation NEET
CBSE
__________ are obligate intracellular parasites.
Section B: Multiple Choice Questions
1 Which of the following is not a prokaryote?
a) Mycoplasma
b) Cyanobacteria
c) Saccharomyces
d) Bacteria
2. Which kingdom includes unicellular eukaryotes?
a) Monera
b) Protista
c) Fungi
d) Plantae
3. Virus has a __________.
a) Cellular structure
b) Protein coat
c) Peptidoglycan wall
d) None
4. Methanogens belong to __________.
a) Eubacteria
b) Archaebacteria
c) Protista
d) Fungi
5. Bread mould belongs to __________.
a) Basidiomycetes
b) Phycomycetes
c) Ascomycetes
d) Deuteromycetes
Section C: Short Answer Questions
Write the main features of Kingdom Monera.
Differentiate between Archaebacteria and Eubacteria.
What are lichens? Write their significance.
List three differences between Plantae and Fungi.
What is the economic importance of algae?
Section D: Diagram Based Question
Draw a neat labeled diagram of a bacteriophage.
Section E: Assertion and Reason
Assertion: Viruses are considered living organisms.
Reason: They can reproduce inside host cells.
Assertion: Cyanobacteria are classified under Monera.
Reason: They have prokaryotic cell organization.
Answer Key
Section A: Fill in the Blanks
Five kingdom classification was proposed by R.H. Whittaker.
Cyanobacteria are known as the "blue-green algae".
The cell wall of fungi is made up of chitin.
Bryophytes are called "amphibians of the plant kingdom".
Viruses are obligate intracellular parasites.
Section B: Multiple Choice Questions
Saccharomyces
Protista
Protein coat
Archaebacteria
Phycomycetes
Section C: Short Answer Questions
Features of Kingdom Monera:
Unicellular and prokaryotic organisms.
Lack a true nucleus and membrane-bound organelles.
Cell wall present in most, made of peptidoglycan.
Mode of nutrition: autotrophic (chemo/phototrophic) or heterotrophic.
Reproduction is mostly asexual (binary fission).
2. Differences between Archaebacteria and Eubacteria:
Archaebacteria: Survive in extreme conditions (halophiles, thermophiles, methanogens); cell wall lacks peptidoglycan; unique lipids in plasma membrane.
Eubacteria: Found in normal environments; cell wall contains peptidoglycan; typical bacterial membrane lipids.
Lichens: Symbiotic association between algae (provides food) and fungi (provides shelter, water, and minerals).
Significance: Indicators of pollution, soil formation, food for some animals, and used in perfumes and dyes.
3. Differences between Plantae and Fungi:
Plantae: Autotrophic, chlorophyll present, cell wall made of cellulose.
Fungi: Heterotrophic, lack chlorophyll, cell wall made of chitin.
Plants store food as starch, fungi store food as glycogen.
4. Economic importance of algae:
Source of food (e.g., Porphyra, Chlorella).
Used in industry (agar, alginates, carrageenan)
Help in oxygen production and carbon dioxide fixation.
Some are used as biofertilizers (e.g., Anabaena).
Section D: Diagram Based Question
Bacteriophage diagram:
Must include labeled parts: head, DNA, collar, sheath, base plate, tail fibers.
Section E: Assertion and Reason
True. Viruses are considered living because they can reproduce inside host cells. Assertion and Reason are both correct, and the reason explains the assertion.
True. Cyanobacteria belong to Monera since they have prokaryotic cell structure. Assertion and Reason are both correct, and the reason explains the assertion.
course
No courses found
CBSE Class 11 Biology Chapter 2 Worksheet FAQs
Who proposed the Five Kingdom Classification?
R.H. Whittaker in 1969.
What are the five kingdoms in Whittaker’s classification?
Monera, Protista, Fungi, Plantae, and Animalia.
Why are Archaebacteria called “ancient bacteria”?
They are primitive prokaryotes that can survive extreme environments like hot springs, salty lakes, and marshes.