CBSE Class 9 Biology Revision Worksheet Set A

CBSE Class 9 Biology Worksheet - Revision

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ONE MARK QUESTIONS:

1. Which organelle releases energy in the form of ATP?

2. Name the connective tissue which forms a packing material between the organs of the body.

3. What are macro nutrients and micronutrients?

4. Name 2 exotic breeds of cattle.

5. How does RER differs from SER?

6. Define plant breeding.

7. Expand a) ATP b) DNA

8. Name 2 common weeds that grow with wheat and paddy.

9. Which organelle is responsible for detoxifying poisons and drugs in vertebrates?

10. Name 2 semiautonomous organelles.

TWO MARK QUESTIONS:

1. Draw a neat labeled diagram of cell found in spinal cord.(nerve cell-neuron)

2. Define the terms a) composite fish culture b) crop rotation.

3. Differentiate between ligament and tendon.

4. a) Name the plant tissue which lacks vacuole?

b) Give an example of osmosis that takes place naturally in nature.

5. Why is it advisable to grow legume crop between 2 cereal crops?

6. Name one indigenous and one exotic breed of fowl.

7. Why plasma membrane is called selectively permeable membrane. How do substances like CO2 and H2O move in and out of cell?

8. Give difference between Bone and Cartilage, Blood and Lymph.

9. What will happen to plant cell if it is kept in a hypertonic solution.

10. Distinguish between Eukaryotic and prokaryotic cell.

THREE MARK QUESTIONS:

1. Draw a labeled diagram of Animal cell.

2. Mention the hazards of using fertilizers.

3. What are plastids mention the 3 types of plastids and their functions.

4. Differentiate between Parenchyma, Collenchyma and Sclerenchyma.

5. Compare the use of manures and fertilizers in maintaining soil fertility.

6. What are the differences between Broilers and Layers with respect to their purpose of breeding and daily food requirement? What necessary steps have to be taken to prevent the occurrence of infections in poultry farm?

7. Write about the structure and function of nucleus.

8. How many types of meristems are present in plants, on the basis of position.

9. How do cardiac muscle differ from Voluntary and Involuntary muscle in structure and function.

10. What are the functions of a) mitochondria b) chromosome c) lysosome.

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