CBSE Class 11 Biology Sample Paper Set 14

SECTION –A

Answer the following questions in brief

1. How can you revert a freshly plasmolysed plant cell to its normal state?

2. Name the Oxygen binding pigment found in the root nodules of the plant like Beans and Peas. What is the normal colour of this pigment ?

3. Write down the scientific name of a wheat/Rice and Tiger.

4. Name the substrate on which Maltase can act upon. What will the products in this reaction?

5. What is the function of thrombokinase catalyse?

6. Expand ANF & JGA.

7. Name any two hormones of pituitary gland which are called as Gonadotropins.

8. Provide a term to radially symmetrical flower.

SECTION –B

1. Explain the haplontic and diplontic life cycle by giving examples.

2. Differentiate between the two types of Photophosphotylation. ( 6 points)

3. Explain Calvin cycle with the help of diagram.

4. Draw a neat and well labeled diagram of human eye and label the following parts.

a) Fovea b) Blind spot c) Retina d) Vitreous chamber.

5. Explain the role of Ca++ and troponin in the muscle contraction.

6. Draw a ECG of a normal person and mention what does P and T wave represents.

7. Differentiate between dicot and monocot stem. (4 Points)

8. What is the role of porins in diffusion? Differentiate between Antiport and symport.

9. What is meant by diatomaceous earth? Write down its two commercial usse

10. Give any four identifying and clinical symptoms of cretinism.

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