361.
What happens in plants during vascularisation
A
Differentiation of Procambium, formation of primary phloem followed formation of primary phloem followed by formation of primary xylem
B
Differentiation of Procambium followed by the formation of primary followed by the formation of primary phloem and xylem simultaneously
C
Formation of Procambium, primary phloem and xylem simultaneously
D
Differentiation of Procambium followed by the formation of secondary followed by the formation of secondary xylem
Answer :
Differentiation of Procambium followed by the formation of primary followed by the formation of primary phloem and xylem simultaneously
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362.
An Angiosperm, lacking vessels is
A
Trochodendron
B
Acacia
C
Salix
D
Dendrocalamus
Answer :
Trochodendron
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363.
Hard woods have
A
More of parenchyma
B
Vessels in abundance
C
Trachieds mainly
D
Non-porous nature
Answer :
Vessels in abundance
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364.
Promeristem gives rise to which meristem
A
Secondary
B
Lateral
C
Primary
D
Apical
Answer :
Primary
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365.
Velaman tissue are associated with
A
Haustorial function
B
Assimilation
C
Absorption of moisture
D
Nutrition
Answer :
Absorption of moisture
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366.
Which of the following plants grow by a single "apical cell"
A
Monocots
B
Dicots
C
Gymnosperms
D
Bryophyta
Answer :
Bryophyta
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367.
Bulliform cells are found in
A
Seeds of sunflower
B
Leaf of wheat
C
Pod of pea
D
Tuber of potato
Answer :
Leaf of wheat
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368.
Submerged hydrophytes have well developed
A
Vascular system
B
Aerenchyma
C
Root system
D
Stomata
Answer :
Aerenchyma
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369.
Function of companion cells is
A
providing energy to sieve elements for active transport
B
providing water to phloem
C
loading of sucrose into sieve elements by passive transport
D
loading of sucrose into sieve elements
Answer :
loading of sucrose into sieve elements
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370.
Lacunar Collenchyma is specifically present in hypodermis of
A
Cucurbita stem
B
Sunflower stem
C
Brinjal stem
D
Maize stem
Answer :
Cucurbita stem
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