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

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

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

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.

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