Q. No.(A) Primary xylem
(B) Secondary xylem
(C) Primary phloem
(D) Secondary phloem
Arrange these in the correct sequence of their position from pith towards cortex.
| 1. | (A), (B), (D), (C) | 2. | (B), (A), (C), (D) |
| 3. | (A), (B), (C), (D) | 4. | (B), (A), (D), (C) |
The cortex of dicot stem has been divided into
| 1. | hypodermis, General cortex, Endodermis |
| 2. | hypodermis, General cortex, pericycle |
| 3. | hypodermis, General cortex, Endodermis, pericycle |
| 4. | hypodermis, General cortex, Endodermis, pericycle and pith |
In dicot stem hypodermis is made up of___________cells while general cortex is made up of_______________.
| 1. | collencyma,sclerenchyma |
| 2. | collencyma,parenchyma |
| 3. | parenchyma,sclerenchyma |
| 4. | parenchyma,collenchyma |
Read the different components from I to IV in the list given below and tell the correct order of the components with reference to their arrangement from the outer side to the inner side in a woody dicot stem.
| I. | Secondary Cortex |
| II. | Wood |
| III. | Secondary phloem |
| IV. | Phellem |
The correct order is:
| 1. | III, IV, II, I | 2. | I, II, IV, III |
| 3. | IV, I, III, II | 4. | IV, III, I, II |
Hypodermis in dicot stem is composed of
1. Parenchyma
2. Collenchyma
3. Sclerenchyma
4. Both 1. and 3.
Tissue which provides mechanical strength and flexibility to young dicot stem is present in
| 1. | Pith | 2. | Endodermis |
| 3. | Hypodermis | 4. | Cortex |
In between the vascular bundles, radially placed parenchymatous cells constitute
| 1. | medullary rays | 2. | cortex |
| 3. | medulla | 4. | cortical rays |
The type of vascular bundle in dicot stem is -
| 1. | open, conjoint with endarchprotoxylem |
| 2. | open,conjoint with exarch protoxylem |
| 3. | close, conjoint with endarchprotoxylem |
| 4. | open, conjoint with endarchmetaxylem |
Pith is made up of ___________cells and _____________spaces are present between them.
| 1. | Parenchymatous, intracellular |
| 2. | Parenchymatous, intercellular |
| 3. | collenchymatous, intracellular |
| 4. | Parenchymatous, no intercellular |
The hypodermis of dicot stem and monocot stem is made up of
| 1. | collenchyma and sclerenchyma respectively |
| 2. | collenchyma in both |
| 3. | sclerenchyma in both |
| 4. | sclerenchyma and collenchyma respectively |
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