MEDIUM
11th West Bengal Board
IMPORTANT
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A group of similar or dissimilar cells having a common origin and performing similar function is called a tissue.

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Important Questions on Structural Organisation in Plants

MEDIUM
11th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 11>Chapter 4 - Structural Organisation in Plants>EXERCISE>Q 2
Tissues whose cells are always in a state of division is called permanent tissue.
MEDIUM
11th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 11>Chapter 4 - Structural Organisation in Plants>EXERCISE>Q 3
Tissue whose cells are not in a state of division is called meristematic tissue.
MEDIUM
11th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 11>Chapter 4 - Structural Organisation in Plants>EXERCISE>Q 4
The type of meristem present at the apices of stem and root of vascular plants is called apical meristem.
HARD
11th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 11>Chapter 4 - Structural Organisation in Plants>EXERCISE>Q 5
Elongated, narrow fibre like sclerenchyma cells with tapered ends are called sclerenchyma fibres.
HARD
11th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 11>Chapter 4 - Structural Organisation in Plants>EXERCISE>Q 6
More or less short isodiametric sclerenchyma cells are called sclereids.
HARD
11th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 11>Chapter 4 - Structural Organisation in Plants>EXERCISE>Q 7
Brachysclereids are bone-like elongated or barrel-shaped sclereids with swollen ends.
MEDIUM
11th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 11>Chapter 4 - Structural Organisation in Plants>EXERCISE>Q 8
Xylem is a complex water-conducting tissue in vascular plants.
HARD
11th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 11>Chapter 4 - Structural Organisation in Plants>EXERCISE>Q 9
Sieve tubes of phloem are dead cells.