Academic session 2026-27, Chapter 3 in the current curriculum.
Welcome to the NCERT Solutions for Class 9 Science - Chapter Tissues. This page offers a step-by-step solution to the specific question from Exercise 0, Question 52:
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.
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.
(a) Meristematic cells have a prominent nucleus and dense cytoplasm because they have to divide continuously as they are in the state of metabolic division. These cells do not store food material and waste so they lack vacuole in them.
(b) Due to lignification in the sclerenchyma cells, the cells compactly arranged and leaves no intercellular space between them.
(c) Pear fruit contains sclerenchymatous stone cells or sclereids which provide gritty texture to the fruit. Thus, when we chew pear fruit, we get a crunchy and granular feeling.
(d) Collenchyma tissue provides mechanical support and flexibility to the growing parts of the plant such as the young stem and petiole of a leaf. This allows their easy bending without breaking. Thus the branches move and bend freely in high wind velocity.
(e) The husk of a coconut is made up of sclerenchymatous fibres which consist of compactly arranged cells with thick lignified cell walls and no intercellular spaces. So, they are tightly joined together. Thus, it is difficult to pull out the husk of a coconut.
NCERT questions are designed to test your understanding of the concepts and theories discussed in the chapter. Here are some tips to help you answer NCERT questions effectively:
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Welcome to the NCERT Solutions for Class 9 Science - Chapter . This page offers a step-by-step solution to the specific question from Excercise 0 , Question 52: Give reasons for (a) Meristematic cells have a prominent nucleus and dense cytoplasm but they lack ....
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