41.
The cotton fibres are
A
Fibres taken out from stem
B
Epidermal hairs of seed
C
Epidermal hairs of fruits
D
Fibres taken out from roots
Answer :
Epidermal hairs of seed
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42.
Hard bast (Bundle cap) occurs in
A
Sunflower stem
B
Wheat stem
C
Sunflower root
D
A and C both
Answer :
Sunflower stem
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43.
Jute is obtained from
A
Primary phloem
B
Secondary phloem
C
Primary xylem
D
Secondary xylem
Answer :
Secondary phloem
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44.
In trees, the growth rings represent
A
Primary xylem
B
Secondaryxylem
C
Secondary phloem
D
Cambium
Answer :
Secondaryxylem
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45.
Apical, intercalary and lateral meristems are differentiated on the basis of
A
Development
B
Origin
C
Function
D
Position
Answer :
Position
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46.
Phloem conducts food by
A
Perforated sieve plates
B
Baset fibres
C
Xylem parenchyma
D
Xylem fibres
Answer :
Perforated sieve plates
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47.
A bundle with xylem and phloem separated by a strip of cambium is
A
Collateral and closed
B
Collateral and open
C
Concentric and closed
D
Bicollateral and open
Answer :
Collateral and open
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48.
Plants having little or no secondary growth are
A
Grasses
B
Deciduous Angiosperms
C
Cycads
D
Conifers
Answer :
Grasses
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49.
Most conspicuous annual rings form in
A
Temperature evergreen plants
B
Tropical deciduous
C
Temperature deciduous plants
D
Tropical evergreen
Answer :
Temperature deciduous plants
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50.
Bundle sheath is absent around vascular bundles of
A
Dicot stem
B
Monocot stem
C
Dicot leaf
D
Monocot leaf
Answer :
Dicot stem
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