CBSE Class 11 Biology Zoology Assignment

Read and download the CBSE Class 11 Biology Zoology Assignment for the 2025-26 academic session. We have provided comprehensive Class 11 Biology school assignments that have important solved questions and answers for Zoology. These resources have been carefuly prepared by expert teachers as per the latest NCERT, CBSE, and KVS syllabus guidelines.

Solved Assignment for Class 11 Biology Zoology

Practicing these Class 11 Biology problems daily is must to improve your conceptual understanding and score better marks in school examinations. These printable assignments are a perfect assessment tool for Zoology, covering both basic and advanced level questions to help you get more marks in exams.

Zoology Class 11 Solved Questions and Answers

SECTION – A 

Answer all the questions. Every answer should be restricted to four lines only.

1. Explain tautonymy. Give one example.

2. Name two larval forms of sponges.

3. What is endostyle? What is its function?

4. What is biological magnification?

5. What is a paurometabolous development? Give one example.

6. What is lymph? How does it differ from plasma?

7. Define mutualism? Give one example.

8. The head of cockroach is said to be hypognathous. Justify the statement

9. What is nocturnal periodicity? Give one example.

10. What is nitrogen fixation? Give one example of an organism that fixes nitrogen.

 
SECTION – B 
 
Answer any six questions. Every answer should be restricted to twenty lines only.
 
11. Describe the system of binominal nomenclature.
 
12. Mention the general characters of Holothuroidea
 
13. Mention the general characters of the class Amphibia
 
14. Give an account of flagellar locomotion.
 
15. Draw a neat labeled diagram of a multipolar neuron.
 
16. In your view what motivates youngsters to take to alcohol or drugs and how can this be avoided?
 
17. Give an account of Haversian system of a compact bone.
 
18. Give an account of transverse binary fission
 
 
SECTION – C 
 
Answer any two questions. Every answer should be restricted to sixty lines only.
 
19. Describe the mosquito phase of a the life history of Plasmodium vivax.
 
20. Describe the digestive system of Periplaneta Americana. Add a note on physiology of digestion.
 
21. Give an account of the flow of energy in an ecosystem.

SECTION-A

Answer all the questions (Very Short Answer Type) 

1. Define chyme and chyle ?

2. Name the muscles that help in breathing movement of man ?

3. How many pace makers are present in the human heart ? What are they ?

4. What is a sarcomere ?

5. Name the meninges of the mammalian nervous system from the outer most to the inner most ?

6. Write the functions of Leydig cells and Sertoli cells ?

7. Distinguish between ‘Humoral immunity’ and ‘Cell mediated immunity’.

8. How is acromegaly caused ?

9. Write any four important advantages of poultry farming ?

10. What is the principle involved in X ray radiography.
 

SECTION-B

Answer any Six Questions (Short Answer Type) 

11. Explain the process of digestion in the stomach.

12. What are the bio-chemical changes that occur in a muscle during contraction.

13. Write a brief note on Morphological Evidences in favour of organic evolution?

14. Draw a diagram of internal structure of testis.

15. Write a brief note on different types of immunities ?

16. Explain the following phenomena.
 
a) Turners Syndrome. b) Down Syndrome.
 
17. How does Hardy Weinberg principle explain equilibrium of allelic frequency ?
 
18. What is the importance of MRI in diagnostic imaging ?
 
 
SECTION-C
 
Answer any Two Questions (Long Answer Type)
 
19. How does human heart function to pump blood to the body parts ?
 
20. Describe the female reproductive system with the help of a labelled diagram ?
 
21. Describe the determination of sex by Genetic Balance theory of Bridges in Drosophila.
 
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Revision Assignments for Class 11 Biology
CBSE Class 11 Biology Revision Assignment

CBSE Class 11 Biology Zoology Assignment

Access the latest Zoology assignments designed as per the current CBSE syllabus for Class 11. We have included all question types, including MCQs, short answer questions, and long-form problems relating to Zoology. You can easily download these assignments in PDF format for free. Our expert teachers have carefully looked at previous year exam patterns and have made sure that these questions help you prepare properly for your upcoming school tests.

Benefits of solving Assignments for Zoology

Practicing these Class 11 Biology assignments has many advantages for you:

  • Better Exam Scores: Regular practice will help you to understand Zoology properly and  you will be able to answer exam questions correctly.
  • Latest Exam Pattern: All questions are aligned as per the latest CBSE sample papers and marking schemes.
  • Huge Variety of Questions: These Zoology sets include Case Studies, objective questions, and various descriptive problems with answers.
  • Time Management: Solving these Zoology test papers daily will improve your speed and accuracy.

How to solve Biology Zoology Assignments effectively?

  1. Read the Chapter First: Start with the NCERT book for Class 11 Biology before attempting the assignment.
  2. Self-Assessment: Try solving the Zoology questions by yourself and then check the solutions provided by us.
  3. Use Supporting Material: Refer to our Revision Notes and Class 11 worksheets if you get stuck on any topic.
  4. Track Mistakes: Maintain a notebook for tricky concepts and revise them using our online MCQ tests.

Best Practices for Class 11 Biology Preparation

For the best results, solve one assignment for Zoology on daily basis. Using a timer while practicing will further improve your problem-solving skills and prepare you for the actual CBSE exam.

Where can I download the latest CBSE Class 11 Biology Chapter Zoology assignments?

You can download free PDF assignments for Class 11 Biology Chapter Zoology from StudiesToday.com. These practice sheets have been updated for the 2025-26 session covering all concepts from latest NCERT textbook.

Do these Biology Chapter Zoology assignments include solved questions?

Yes, our teachers have given solutions for all questions in the Class 11 Biology Chapter Zoology assignments. This will help you to understand step-by-step methodology to get full marks in school tests and exams.

Are the assignments for Class 11 Biology Chapter Zoology based on the 2026 exam pattern?

Yes. These assignments are designed as per the latest CBSE syllabus for 2026. We have included huge variety of question formats such as MCQs, Case-study based questions and important diagram-based problems found in Chapter Zoology.

How can practicing Chapter Zoology assignments help in Biology preparation?

Practicing topicw wise assignments will help Class 11 students understand every sub-topic of Chapter Zoology. Daily practice will improve speed, accuracy and answering competency-based questions.

Can I download Biology Chapter Zoology assignments for free on mobile?

Yes, all printable assignments for Class 11 Biology Chapter Zoology are available for free download in mobile-friendly PDF format.