Lignified elongated dead cells are__________________.

Parenchyma

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Collenchyma

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Sclerenchyma

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None of these

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Solution

The correct option is C Sclerenchyma
Parenchyma cells are thin-walled, flexible and loosely packed cells. They are living cells. Their shape changes as per function.
Collenchyma cells are living, elongated and irregularly thickened at corners with less intercellular space.
Sclerenchyma is a type of permanent tissue. They are dead, elongated, thin, narrow cells with thickened walls without any internal space.
Therefore, option C is correct.

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Similar questions

Rod-shaped elongated thick-walled lignified dead cells found in seed coat of pulse legumes are

List I	List II
A) Tracheids	I) Cells possess highly thickened walls with oblilateral central human
B) Vessels	II) Elongated tube like cells with thick lignified walls and tapering ends
C) Xylem parenchyma	III) Individual members are interconnected through perorations in their common walls
D) Xylem fibers	IV) Cells are living with thin cellulosic cell walls

Question 28
Parenchyma cells are

(a) relatively unspecified and thin walled
(b) thick walled and specialised
(c) lignified
(c) none of these

	I		II
(a)	Tracheids	(i)	Cells possess highly thickened walls with oblilateral central lumen
(b)	Vessels	(ii)	Elongated tube like cells with thick lignified walls and tapering ends
(c)	Xylem parenchyma	(iii)	Individual members are interconnected through perforations in their common walls
(d)	Xylem fibres	(iv)	Cells are living with thin cellulose cell wall.

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