HARD
11th West Bengal Board
IMPORTANT
Earn 100

Sieve tubes of phloem are dead cells.

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Important Questions on Structural Organisation in Plants

HARD
11th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 11>Chapter 4 - Structural Organisation in Plants>EXERCISE>Q 10
Phloem fibres are also called wood fibres.
MEDIUM
11th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 11>Chapter 4 - Structural Organisation in Plants>EXERCISE>Q 11
Root hairs are multicellular
MEDIUM
11th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 11>Chapter 4 - Structural Organisation in Plants>EXERCISE>Q 12
Lycopodium clavatum possess plectostele.
HARD
11th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 11>Chapter 4 - Structural Organisation in Plants>EXERCISE>Q 13
Tubular stele with a central cylinder of parenchymatous pith is called siphonostele.
HARD
11th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 11>Chapter 4 - Structural Organisation in Plants>EXERCISE>Q 14
In the case of monocot stem, the vascular bundles are arranged irregularly scattered within the ground tissue and are called atactostele.
MEDIUM
11th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 11>Chapter 4 - Structural Organisation in Plants>EXERCISE>Q 15
Presence of pith is a basic character of a protostele.
EASY
11th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 11>Chapter 4 - Structural Organisation in Plants>EXERCISE>Q 1
Define tissue.
HARD
11th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 11>Chapter 4 - Structural Organisation in Plants>EXERCISE>Q 2
Mention the main types of plant tissues.