491.
Reduction in vascular tissue, mechanical tissue and cuticle is dcharacteristic of:
A
mesophytes
B
epiphytes
C
hydrophytes
D
xerophytes
Answer :
hydrophytes
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
492.
Vascular bundles in dicot stem are
A
Open, collateral, endarch
B
Closed, collateral, endarch
C
Open, collateral, exarch
D
Closed, collateral, exarch
Answer :
Open, collateral, endarch
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
493.
Loading of pholem is related to
A
increase of sugar in phloem
B
elongation of phloem cell
C
separation of phloem parenchyma
D
strengthening of phloem fibre
Answer :
increase of sugar in phloem
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
494.
Which of the following is a meristematic tissue
A
Phellem
B
Phellogen
C
Phelloderm
D
Periderm
Answer :
Phellogen
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
495.
Vascular bundles in monocotyledons are considered closed because:
A
Cambium is absent
B
There are no vessels with perforations
C
Xylem is surrounded all around by phloem
D
A bundle sheath surrounds each bundle
Answer :
Cambium is absent
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
496.
T.S. of a Material exhibits conjoint collateral endarch and closed bundles scattered in a ground tissue what should be the material
A
Monocot root
B
Dicot root
C
Monocot stem
D
Dicot stem
Answer :
Monocot stem
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
497.
Cells wall in impermeable to water and deposition of suberin occurs in
A
Bark
B
Cork
C
Bast
D
Xylem
Answer :
Cork
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
498.
Secondary growth in the cortical region of dicot stem is due to the activity of
A
Cambium
B
Phellogen
C
Phellogen
D
Phelloderm
Answer :
Phellogen
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
499.
Sap wood differ from heart wood in being
A
Darker and non conducting
B
Softer and non conducting
C
Lighter and conducting
D
Hards, darker and less conducting
Answer :
Lighter and conducting
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
500.
Where do the casparian bands occur?
A
Epidermis
B
Endodermis
C
Pericycle
D
Phloem
Answer :
Endodermis
Discuss Question
No explanation is given for this question. Let's discuss the answer together.