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Class 11 Biology Chapter 7 Structural Organisation In Animals Quiz 2 (25 MCQs)

Quiz Instructions

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1. One of the main function of frog's skin is-

Correct Answer: A) Diffusion of respiratory gases.

2. What is the role of the vocal sacs in male frogs?

Correct Answer: A) They are used for producing sound.

3. Exocrine glands secrete mucus, saliva, earwax, oil, milk, digestive enzymes and other cell products. Is this statement true or false?

Correct Answer: A) True.

4. Which type of connective tissue cells secretes proteins into the matrix to make fibers?

Correct Answer: A) Fibroblasts.

5. The most active phagocytic white blood cells are

Correct Answer: B) Neutrophils and monocytes.

6. Read the following statements and find out incorrect statements.

Correct Answer: D) Male coackroach bear a pair of collateral gland which function as accessory reproductive gland.

7. With the help of several oomatidia coackroach can recieve several image of an object.this kind of vision is called

Correct Answer: B) Mosaic vision, with more sensitivity but less resolution.

8. Male frogs can be distinguished from female frogs primarily by which feature?

Correct Answer: A) Presence of vocal sacs and copulatory pad.

9. Frog kidneys contain structural units called what?

Correct Answer: D) Urini ferous tubules or nephrons.

10. What is the common Indian species used to study frog morphology?

Correct Answer: D) Rana tigrina.

11. In male coackroach, the external genetilia is represented by

Correct Answer: B) Three gonophysis-right, left and ventral.

12. What is the role of the muscular tongue in frogs?

Correct Answer: A) Used in capturing prey.

13. Identify the types Of cell junctionsthat help to stop the leakage ofthe substances across a tissueand facilitation Of communicationwith neighbouring cells via rapidtransfer of ions and molecules

Correct Answer: B) Tight junctions and gap junctions, respectively.

14. What type of circulatory system do frogs have?

Correct Answer: A) A well-developed closed type.

15. These cells are small and flat

Correct Answer: C) Squamous.

16. Which cartilage is present on the end of long bone?

Correct Answer: A) Hyaline cartilage.

17. What is the significance of the renal portal system in frogs?

Correct Answer: A) It connects the kidney and lower parts of the body.

18. In frogs, which structure receives openings of the oesophagus, stomach, intestine, and rectum and serves as a common chamber for waste elimination and reproductive ducts?

Correct Answer: C) Cloaca common chamber for ducts.

19. Which cranial nerve pair number is present in frogs?

Correct Answer: D) Ten pairs from the brain.

20. Secretes mucus in the respiratory tract, specifically the trachea

Correct Answer: B) Pseudostratified Columnar.

21. Cartilage is presenta.in the tips of nose and middle ear jointsb.between adjacent bone of vertebral columnc.between adjacent bone of limb and hands in adults

Correct Answer: A) A, b and c.

22. What is the composition of blood in frogs?

Correct Answer: A) Plasma and cells, including RBCs, WBCs, and platelets.

23. What is the function of the forebrain in frogs?

Correct Answer: B) Includes olfactory lobes and paired cerebral hemispheres.

24. Which one of the following cells is not capable of metabolizing glucose to carbon dioxide aerobically?

Correct Answer: D) Red blood cells.

25. Which digestive gland produces bile that is stored in the gall bladder?

Correct Answer: C) Liver.

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