NCERT Class 11 Biology Structural Organisation In Animals Questions

STRUCTURAL ORGANISATION IN ANIMALS

VERY SHORT ANSWER TYPE QUESTIONS

1. State the number of segments in earthworm which are covered by a prominent dark band or clitellum.

2. Where are sclerites present in Cockroach?

3. How many times do nymphs moult to reach the adult form of cockroach?

4. Identify the sex of a frog in which sound producing vocal sacs are present.

5. Name the process by which a tadpole donelops into an adult frog.

6. What is the scientific term given to earthworm’s body segments?

7. A muscle fibre tapers at both ends and does not show striations. Name the muscle fibre.

8. Name the different cell junctions found in tissues.

9. Give two identifying features of an adult male frog.

10. Which mouth part of cockroach is comparable to our tongue?

11. The digestive system of frog is made of the following parts. Arrange them in an order beginning from mouth. Mouth, oesophagus, buccal cavity, stomach, intestine, cloaca, rectum, cloacal aperture

12. What is the difference between cutaneous and pulmonary respiration?

13. Special Venous connection between liver and intestine and between kidney and intestine is found in frog, what are they called?

SHORT ANSWER TYPE QUESTIONS

1. Give the location of hepatic caeca in a Cockroach. What is their function?

2. Frogs are beneficial for mankind, justify the statement.

3. The body of sponges does not possess tissue level of organisation though it is made of thousands of cells. Comment.

4. Structural organisation in animals attains different levels as cell - organ - organ system. What is missing in this chain? Mention the significance of such an organisation.

5. Stratified epithelial cells have limited role in secretion. Justify their role in our skin.

6. How does a gap junction facilitate intercellular communication?

7. Why are blood, bone and cartilage called connective tissue?

8. Why are neurons called excitable cells? Mention special features of the membrane of the neuron?

9. Why earthworm is called the friend of farmer?

10. How do you distinguish between dorsal and ventral surface of the body of earthworm.

Please refer to attached file for NCERT Class 11 Biology Structural Organisation In Animals