Water containing cavities in the vascular bundle
is a characteristics feature of
1. Dicot roots
2. Monocot stems
3. Monocot leaves
4. Dicot stems
Monocot stems do not have
1. Protophloem
2. Phloem parenchyma
3. Companion cell in phloem
4. Sieve tube and metaphloem
The given transverse section is of:
1. Monocot stem
2. Dicot stem
3. Monocot root
4. Dicot root
The hypodermis of the monocot stem is made up of
1. collenchyma
2. sclerenchyma
3. parenchyma
4. All of the above
The diagram given below belongs to -
1. Dicot stem having conjoint and collateral
vascular bundles
2. Monocot stem having conjoint and collateral
vascular bundles
3. Dicot root with polyarch condition
4. Monocot root with radial vascular bundles
Which type of cells are not present in Phloem of monocot stem
(1)Companion cell
(2)sieve tubes
(3) Phloem parenchyma
(4) Phloem fibres
Vascular bundle are ___________and surrounded by ___________ bundle sheath in
monocot stem.
1. scattered, sclerenchymatous
2. arranged, sclerenchymatous
3. scattered, parenchymatous
4. scattered, collenchymatous
Conjoint, collateral, closed vascular bundles without phloem parenchyma are found in plants which have
1. Differentiated ground tissue in the stem
2. Dedifferentiated pericyclic structure in the mature root
3. Sclerenchymatous hypodermis in stem
4. Developed pith in stem
Consider the following statements:
In a monocot stem-
I: | Hypodermis is collenchymatous. |
II: | Vascular bundle are collateral and closed. |
III: | Trichomes are usually absent. |
Which of the above statements are true?
1. | I and II only | 2. | I and III only |
3. | II and III only | 4. | I, II and III |
In monocotyledonous stem
1. | Hypodermis is parenchymatous |
2. | Each vascular bundle is surrounded by collenchymatous bundle sheath |
3. | Peripheral vascular bundles are generally larger than centrally located ones |
4. | Water containing cavities are present within the vascular bundles |