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 TS of Dicotyledonous root the innermost layer of the cortex is called _________.
(1) Pericycle
(2) Metaxylem
(3) Endodermis
(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