The presence of cambium possess the ability to form secondary xylem and phloem tissue and hence are called
1. | Open vascular bundle |
2. | Closed vascular bundle |
3. | Intermediate vascular bundle |
4. | End node vascular bundle |
In monocotyledons the vascular bundle have no ________ present in them.
1. Xylem
2. Cambium
3. Cork
4. Phloem
Since there is no cambium present in monocotyledons they are referred to as
1. | Open vascular bundle |
2. | Closed vascular bundle |
3. | Intermediate vascular bundle |
4. | End node vascular bundle |
When xylem and phloem within a vascular bundle are arranged in an alternate manner on different radii such arrangement is called _______ and found mostly in __________.
(1) Radial, roots
(2) Radial, shoots
(3) Conjoint, roots
(4) Conjoint, shoots
When xylem and phloem are situated at the same radius of vascular bundle, then they are called _________ type of vascular bundle and are found in _________.
1. | Radial, roots |
2. | Radial, stem and leaves |
3. | Conjoint, root |
4. | Conjoint, stems and leaves |
Phloem located only on the outer side of xylem is a characteristic feature of ________ vascular bundles.
1. Conjoint
2. Radial
3. Diagonal
4. Spherical
In T.S. of Dicotyledonous root, the innermost layer of the cortex is called _________.
(1) Pericycle
(2) Endodermis
(3) Metaxylem
(4) Pith
The walls of the endodermal cells have deposition of water impermeable, waxy material suberin in the form of __________.
(1) Protoxylem
(2) Metaxylem
(3) Casparian strip
(4) Cork cambium
In TS of dicotyledonous root next to endodermis lies a few layers of thick walled parenchymatous cells referred to as _________.
1. Pericycle
2. Metacycle
3. Procycle
4. Pith
In TS of Dicotyledonous root the parenchymatous cells which lies between the xylem and phloem are called _________.
(1) Connective tissue
(2) Conjuctive tissue
(3) Cortex
(4) Cambium