NCERT Book Class 9 Science Tissues Questions

TISSUES

1. Which of the following tissues has dead cells?

(a) Parenchyma

(b) Sclerenchyma

(c) Collenchyma

(d) Epithelial tissue

2. Find out incorrect sentence

(a) Parenchymatous tissues have intercellular spaces

(b) Collenchymatous tissues are irregularly thickened at corners

(c) Apical and intercalary meristems are permanent tissues

(d) Meristematic tissues, in its early stage, lack vacuoles

3. Girth of stem increases due to

(a) apical meristem

(b) lateral meristem

(c) intercalary meristem

(d) vertical meristem

4. Which cell does not have perforated cell wall?

(a) Tracheids

(b) Companion cells

(c) Sieve tubes

(d) Vessels

5. Differentiate between sclerenchyma and parenchyma tissues. Draw well labelled diagram.

6. Describe the structure and function of different types of epithelial tissues. Draw diagram of each type of epithelial tissue.

7. Draw well labelled diagrams of various types of muscles found in human body.

8. Give reasons for

(a) Meristematic cells have a prominent nucleus and dense cytoplasm but they lack vacuole.

(b) Intercellular spaces are absent in sclerenchymatous tissues.

(c) We get a crunchy and granular feeling, when we chew pear fruit.

(d) Branches of a tree move and bend freely in high wind velocity.

(e) It is difficult to pull out the husk of a coconut tree.

9. List the characteristics of cork. How are they formed? Mention their role.

10. Why are xylem and phloem called complex tissues? How are they different from one other?

11. (a) Differentiate between meristematic and permanent tissues in plants

      (b) Define the process of differentiation

      (c) Name any two simple and two complex permanent tissues in plants.

Please refer to attached file for NCERT Class 9 Science Tissues Questions