CBSE Class 11 Biology Sample Paper Set 13

SECTION –A

1. Name a unit of classification of organisms which can be recognized and assigned to a definite category at any level of classification.

2. Why scientific names are written is italics?

3. Who is credited with the establishment of the binomial system of nomenclature of plants?

4. What is coenocytic condition?

5. Name the pigment which imparts red colour to red algae.

6. Write the technical term for an animal having true body cavity.

7. If we cut off the head of a cockroach, it still lives for as long as one week. How?

8. If a cell does not posses any intracellular compartmentalization, what name would you give them?

SECTION –B

9. What is herbarium? Give two importance of it.

10. List various guidelines for naming of organisms.

11. Give a schematic representation showing five kingdoms and the criteria used for this system of classification.

12. Mention any four economic importance of algae.

13. Give two differences between the organisms of class-chondricthyes and osteichthyes.

14. Name one modification each of root and stem their functions and one example each.

15. Write two differences between racemose and cymose types of inflorescences.

Or

Write floral formula of a zygomorphic, bisexual, hypogynous flower with four free sepals, four united Petals, four free stamens and two united carpels with superior ovary.

16. Answer the following with reference to the anatomy of dicot roota)

Where is the pericycle located

b) Howare the xylem vessels arranged?

c) What do you call such an arrangement?

d) What type of cells constitutes the cortex?

17. Draw a well labeled diagram of alimentary canal of cockroach.

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