301.
Vascular bundles having cambium are called
A
Open
B
Closed
C
Endarch
D
Exarch
Answer :
Open
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302.
Ground tissue includes
A
all tissues external to endodermis
B
all tissues except epidermis and vascular bundles
C
epidermis and cortex
D
all tissues internal to endodermis
Answer :
all tissues except epidermis and vascular bundles
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303.
Bamboo, grass and mint stem elongate by the activity of
A
Primary meristem
B
Secondary meristem
C
Intercalary meristem
D
Apical meristems
Answer :
Intercalary meristem
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304.
Vascular material present in cork cell walls is
A
Lignin
B
Chitin
C
Suberin
D
Pectin
Answer :
Suberin
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305.
After two or three years of secondary growth the cortex is dicot roots
A
Remains intact
B
In completely sloughed away
C
In largely lost
D
In converted into cork
Answer :
In completely sloughed away
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306.
Fibres would have
A
Thick walled
B
Thin walled
C
Thickening of wall at corners
D
Dense cytoplasm
Answer :
Thick walled
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307.
Annual rings and growth rings are formed due to the fluctuations in the activity of
A
Xylem
B
Phloem
C
Xylem and phloem
D
Cambium
Answer :
Cambium
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308.
Polystelic condition normally occurs in
A
Gymnosperms
B
Dicots
C
Monocots
D
Pteridophyta
Answer :
Pteridophyta
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309.
Plants yields latex is
A
Ficus
B
Sonchus/Euphorbia
C
Calotropis
D
All of the above
Answer :
All of the above
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310.
Which of the following is related to increase in girth of plant
A
Shoot apex
B
Root apex
C
Lateral meristem
D
Intercalary meristem of stem
Answer :
Lateral meristem
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