481.
Presence of vessels in the xylem is
A
A primitive character
B
An advanced character
C
A vestigial character
D
None of the above
Answer :
An advanced character
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
482.
Plant having column of vascular tissues bearing fruits and having a tap root system is
A
monocot
B
dicot
C
gymnosperm of dicot
D
gymnosperm or monocot
Answer :
dicot
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
483.
Sieve plats in Angiosperms
A
Oblique & in lateral walls
B
Straight & in end wall
C
Oblique & in end wall
D
Straight & in lateral wall
Answer :
Oblique & in end wall
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
484.
The continuity of protoplasm from cell to cell in maintained through
A
Stomata
B
Tracheids
C
Vessels
D
Plasmodesmata
Answer :
Plasmodesmata
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
485.
The hypodermis present in maize stem is
A
Parenchymatous
B
Collenchymatous
C
Sclerenchymatous
D
Meristematic
Answer :
Sclerenchymatous
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
486.
Whose living cells provide tensile and mechanical strength
A
Collenchyma
B
Sclerenchyma
C
Phloem
D
Sclereids
Answer :
Collenchyma
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
487.
Periderm includes
A
Phellem
B
Phelloderm
C
Phellogen
D
Phellem, phelloderm, phellogen
Answer :
Phellem, phelloderm, phellogen
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
488.
Sugar transport elements of gymnosperms & pteridophytes are
A
Sieve cells
B
Sieve elements
C
Sieve tubes
D
Sieve tube elements
Answer :
Sieve cells
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
489.
Grafting is successful in dicots but not in monocots because the dicots have
A
Vascular bundles arranged in a ring
B
Cambium for secondary growth
C
Vessels with elements arranged end to end
D
Cork cambium
Answer :
Cambium for secondary growth
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
490.
Vessels and companion cells are respectively present in the xylem and phloem of
A
Gymnosperm
B
Pteriodophytes
C
Angiosperm
D
Bryophyta
Answer :
Angiosperm
Discuss Question
No explanation is given for this question. Let's discuss the answer together.