Assignments - Animal Tissues, Class 9, Science PDF Download

(A) Give answer of following questions :-

1. What is neuron ? Define it.

2. How many types of muscles occur in animals ?

3. Give 3 features of cardiac muscles.

4. Name the tissue responsible for the movement in our body.

5. What is the main function of nervous tissue ?

6. Describe the structure of a nervous tissue ?

7. What is the main function of nervous tissue ?

8. Why are striated muscles called voluntary muscles while non-striated muscles - called involuntary muscles?

(B) Fill in the blanks with suitable words.

1. Blood platelets help in .....................

2. A bone is attached to another bone at joints by .......................

3. Shape of squamous epithelial cells is ........................

4. Neuron is composed of three parts dendron, .................... and .......................

5. ........................... is the most widely distributed connective tissue in the body.

(C) Mark True (T) or False (F) statements from following.

1. Tendons connect muscles to bones.

2. Haversian canal system is present in a cartilage.

3. Striated muscles are voluntary in nature.

4. RBCs provide defence to our body, while WBCs helps in the transport of respiratory gases.

5. Blood plasma contains three types of proteins, albumins, globulins and fibrinogens.

6. A group of cells different in origin but similar in structure and function is called tissue.

7. Striated muscles are also called smooth muscles.

8. Globulin proteins maintain osmotic pressure of the blood.

9. Cartilage Have haversian canal system and its matrix does not contain deposition of calcium and phosphate.

10. Pinna and tip of the nose is made of cartilage.

Questions from NCERT and School Examinations

1. What is a tissue ?

2. What is the utility of tissues in multicellular organisms ?

3. Name the following:

(i) Tissue that forms the inner lining of our mouth.

(ii) Tissue that connects muscle to bone in humans.

(iii) Tissue present in the brain.

(iv) Tissue that stores fat in our body.

(v) Connective tissue with a fluid matrix.

4. Identify the type of tissue in the following:

(i) Skin (ii) bone (iii) lining of kidney tubule

5. Which type of tissue is most abundant in animals?

6. Define histology.

7. Write one word for the following:

(i) Long and unbranched extension of a neuron.

(ii) Thickenings present in sclerenchyma cells.

(iii) Thin, hair-like projections present at the free ends of cuboidal epithelium .

(iv) The pigment present in red blood cells.

(v) Zig-zag thickenings in cardiac muscles.

8. Which epithelium is also called pavement epithelium?

9. Which type of muscle cells show rhythmic contraction?

10. Give one word for the junction of two neurons.

11. What is the function of neurons?

12. Which part of neuron receives impulse and which part takes it away from neuron?

13. Which tissue stores fat ?

14. Name the animal tissue whose cells divide throughout the life.

15. Which is the hardest tissue in human beings ?

16. Name the tissue which forms inner lining of blood vessels.

17. Give the chemical nature of white fibres.

18. What is the average life span of RBCs of man ?

19. Name the ptotein found in yellow fibres.

20. What is the function of blood platelets in human body ?

21. Which tissue is commonly known as 'packaging' tissue ?

22. Name the following:

(i) Multinucleate muscle fibre. (ii) Spindle-shaped muscle fibre.

23. When does the tissue formation take place ?

24. How do the cardiac muscles resemble both striated and smooth muscle fibres ?

25. Draw a flow chart showing the various types of connective tissues.

26. What are Nissl's granules ? Give their functions.

27. Give the functions of plasma of blood.

28. Differentiate between blood and lymph.