Question

Give reasons:

a) Meristematic cells have a prominent nucleus and dense cytoplasm, but they lack vacuoles.
b) Intercellular spaces are absent in the sclerenchymatous tissue.
c) We get a crunchy and granular feeling when we eat a pear.
d) It is difficult to pull out the husk of a coconut.
e) Branches of a tree move and bend freely in high wind velocity.
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Answer 1

a. meristematic cells undergo division and do not store food thus lack vacuolr

b. their walls are lignified and form bundles for mechanical functions

c. due to presence of sclerenchyma

e. due to presence of collenchyma as it provides flexibility

d. Husk is mde of sclerenchyma tissue which are closely packed