UP Board Important Questions for Class 11 Biology

Biology is a subject that involves the study of life. It tells us about the evolution of human life, animals, plants and the natural world around us. It gives us a thorough picture of the respiratory system, metabolism process inside our body and much more. Similarly, there are various application of Biology can be seen in our daily life. The UP Board Class 11 Biology Syllabus covers some of the important functions of human life & animals.

Why Emphasise on UP Board Class 11 Biology Important Questions

Generally, the students mug up the theoretical portion of the UP Board Class 12 Biology subject. Due to which during the annual exams, they forget the answers and start feeling nervous. And this will continue to happen till students blindly mug up the things. For UP Board Class 11 Biology students need to learn the topics by imagining the virtual picture. It will be even better if they practice writing the answers by making the diagrams. In Biology, diagrams help in scoring good marks. Also, students should solve the questions from the UP Board Model Papers.

To boost up the preparation and build up the confidence in the biology subject of UP Board Class 11 Exam, here we are providing the Important Questions. Practice them and asses the UP Board 11 Biology exam preparation.

Download UP Board Important Questions for Class 11 Biology

Here we have provided the set of UP Board Class 11 Biology Important Questions that consist of long answers.

The Questions number from 1 to 11 below carries 3 marks each:

Q1. Write a note on neural tissue.

Q2. Write a note on the role of lysosomes in cellular metabolism.

Q3. Explain the role of calcium ions in muscle contraction.

Q4. “All vertebrates are chordates but all chordates are not vertebrates”. Justify the statement.

Q5. Some symbiotic organisms are very good pollution indicators and composed of achlorophyllous and a non- chlorophyllous member. Describe them.

Q6. Write a note on the different types of arrangement of vascular bundles. Differentiate between Polyp and Medusa with examples.

Q7. (a) Why is conditioned reflex considered to be lost with time?

(b) Give two advantages of reflex action in animals.

Q8. Describe the biochemical composition of the plasma membrane with special emphasis on the arrangement of lipid molecules.

Q9. Explain how inhibitors might be important for plant survival.

Q10. Define collenchyma. Describe its role in the structure and other functions in the plant body of herbaceous angiosperms.

Q11. Write a short note on the action spectrum.


The Questions number from 12 to 20 below carries 5 marks each:

Q12. List the characters found in the members of phylum Platyhelminthes.

Q13. We find that Rhizobium forms nodules on the roots of leguminous plants. Also Frankia, another microbe forms nitrogen-fixing nodules on the roots of non-leguminous plant Alnus.

(a) Can we artificially induce the property of nitrogen-fixation in a plant, leguminous or non-leguminous?

(b) What kind of relationship is observed between mycorrhiza and pine trees?

(c) Is it necessary for a microbe to be in close association with a plant to provide mineral nutrition? Explain with the help of an example.


Q14. Write a brief note on the endomembrane system.

Q15. Describe various forms of lipid with a few examples.

Q16. Discuss five different types of leaf modifications.

Q17. Explain briefly secondary growth in dicot stem.

Q18. Write detailed notes on the types of muscle tissue.

Q19. What are protozoan protists? Describe the different types of movement seen in this group.

Q20. Allium sativum belongs to which class, family? Describe the floral characters and floral formula of this family.

You can download the UP Board Class 11 Biology Important Questions PDF Here!

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