1. Q4) The cells of cork are dead and have ______ in their walls that makes them impervious to gases and water.

2. Q5) The dead cells of Sclerenchyma posess a water-proof material called :-

3. Q6) Determing the age of a tree, by counting the number of annual rings is called :-

4. Q7) Which of these is not a function of epithelial tissue :-

5. Q8) The size of the stem increases in the width due to the presence of :-

6. Q9) Which type of Epithelial cells help in the movement of solid particles (eg. mucus), through a rythmic, concerted beating of the thread-like structures in its outer lining ?

7. Q10) What is the white and yellow fibres of the Areolar connective tissue made of ?

8. Q11) If a person has a dislocated bone , what could be the possible reason for it ?

9. Q12) The matrix of cartilage has a delicate network of collagen fibres and _______ :-

10. Q13) What is the branch of medicine devoted to the study of blood ?