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Q. No.Grass leaves curl inwards during very dry weather. Select the most appropriate reason from the following :
1. Tyloses in vessels
2. Closure of stomata
3. Flaccidity of bulliform cells
4. Shrinkage of air spaces in spongy mesophyll
Subtopic: Â Monocot Leaf |
 83%
From NCERT
NEET - 2019
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Large, empty colourless cells of the adaxial epidermis along the veins of grass leaves are:
| 1. | Lenticels | 2. | Guard cells |
| 3. | Bundle sheath cells | 4. | Bulliform cells |
Subtopic: Â Monocot Leaf |
 85%
From NCERT
NEET - 2020
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The parallel venation in monocot leaves is reflected in the:
| 1. | near similar sizes of vascular bundles, including main veins, as seen in vertical sections of the leaves. |
| 2. | near similar sizes of vascular bundles, except in main veins, as seen in vertical sections of the leaves. |
| 3. | large sizes of vascular bundles in mid rib and smaller in veins, as seen in vertical sections of the leaves. |
| 4. | smaller sizes of vascular bundles in mid rib and larger in veins, as seen in vertical sections of the leaves. |
Subtopic: Â Monocot Leaf |
 70%
From NCERT
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The given figure shows the transverse section of:
| 1. | Isobilateral (Monocotyledonous) Leaf; where A is xylem and B is phloem |
| 2. | Isobilateral (Monocotyledonous) Leaf; where A is phloem and B is xylem |
| 3. | Dorsiventral (Dicotyledonous) Leaf; where A is xylem and B is phloem |
| 4. | Dorsiventral (Dicotyledonous) Leaf; where A is phloem and B is xylem |
Subtopic: Â Monocot Leaf |
 77%
From NCERT
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