- 1(current)
Q. No.Which of the following is a feature of the anatomy of a monocot stem?
I. Collenchymatous hypodermis
II. Scattered vascular bundles
| 1. | Only I | 2. | Only II |
| 3. | Both I and II | 4. | Neither I nor II |
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In a monocot stem:
1. Each vascular bundle is surrounded by a sclerenchymatous bundle sheath
2. Ground tissue is very poorly developed
3. Vascular bundles are conjoint and open with water containing cavities
4. Phloem parenchyma is present
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While looking at a T.S. of a certain plant part you are convinced that it must be a monocot stem. Which of the following, if seen in the T.S. will give you confidence for your conclusion?
1. Conjoint vascular bundles
2. Presence of a hypodermis
3. Presence of phloem parenchyma
4. Presence of water containing cavities within the vascular bundles
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Identify the option where the difference between the vascular bundles of Dicot and Monocot stem is not correctly mentioned:
|
|
Dicot stem |
Monocot stem |
|
1. |
Collateral and open |
Collateral and closed |
|
2. |
Arranged in a ring |
Scattered |
|
3. |
Larger toward the center |
Of uniform size |
|
4. |
Phloem parenchyma present |
Phloem parenchyma absent |
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Match the plants in Column I with the description of anatomy of vascular bundles in them in Column II and select the correct option from the codes given:
|
Column I |
Column II |
|
A. Dicot stem |
a. Collateral, closed and scattered in ground tissue |
|
B. Monocot stem |
b. Conjoint, collateral endarch and open |
|
C. Dicot root |
c. Radial, exarch and polyarch [usually more than 6] |
|
D. Monocot root |
d. Radial, exarch and 2 to 6 in number |
Codes
| A | B | C | D | |
| 1. | a | b | c | d |
| 2. | b | a | d | c |
| 3. | a | b | d | c |
| 4. | b | a | c | d |
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- 1(current)
Q. No.
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