Branches of a tree move and bend freely in high wind velocity due to the __________________.

Presence of collenchyma

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Presence of sclerenchyma

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Presence of aerenchyma

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Presence of parenchyma

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Solution

The correct option is A Presence of collenchyma
Sclerenchyma is dead, long, thin narrow cells with thickened walls without any internal space. This tissue makes the plant hard and stiff. Therefore, option B is incorrect.
Aerenchyma cells are present in an aquatic plant. Such cells have large air cavities, which enable the plant to float in water. Hence, option C is incorrect.
Parenchyma cells are thin-walled, flexible and loosely packed cells. They are often alive at maturity. Their shape changes as per function. They are filler tissue in soft parts of the plant. Hence, option D is incorrect.
Collenchyma cells are thin-walled with some areas of secondary thickening. They provide extra structural support and flexibility to plant. Therefore, option A is correct.

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Similar questions

Q. Give reasons of the following statements -

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

b). Intercellular spaces are absent in schelerenchymatous tissue .

c). Branches of a tree moveandm bend freely in high wind velocity .

Question 52
Give reasons for
(a) Meristematic cells have a prominent nucleus and dense cytoplasm but they lack a 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.

Q. Give reasons for the following :

(a) Aquatic plants can float on water.
(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.

Q. Give reasons for
(a) Meristematic cells have a prominent nucleus and dense cytoplasm but they lack vacuoles.
(b) Intercellular spaces are absent in sclerencymatous tissue.
(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 coconut.

Question 25
A long tree has several branches. The tissue that helps in the sideways conduction of water in the branches is

(a) collenchyma
(b) xylem parenchyma
(c) parenchyma
(d) xylem vessels

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