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Q. No.The type of vascular bundle shown in the given figure is seen in:
I:
Roots
II:
Monocot stems
III:
Dicot stems
1. Only I
2. Only II and III
3. Only I and II
4. Only II
Subtopic: Vascular Tissue System |
85%
From NCERT
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Consider the two statements:
| Assertion (A): | Secondary growth takes place in dicot stems but not in monocot stems. |
| Reason (R): | Hypodermis is collenchymatous in dicot stems while it is sclerenchymatous in monocot stems. |
| 1. | (A) is True but (R) is False |
| 2. | Both (A) and (R) are True but (R) does not explain (A) |
| 3. | (A) is False but (R) is True |
| 4. | Both (A) and (R) are True and (R) correctly explains (A) |
Subtopic: Dicot Stem | Activity of Vascular Cambium (OLD NCERT) |
85%
From NCERT
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Water containing cavities within the vascular bundles is a feature of the anatomy of a:
1. Monocot stem
2. Dicot stem
3. Monocot root
4. Dicot root
1. Monocot stem
2. Dicot stem
3. Monocot root
4. Dicot root
Subtopic: Monocot Stem |
84%
From NCERT
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What will be true for the figure showing the transverse section of an angiosperm root?
I: It is a section of a dicot root.
II: Secondary growth will be well marked later in this root.
III: The vascular bundles shown are radial and polyarch.
I: It is a section of a dicot root.
II: Secondary growth will be well marked later in this root.
III: The vascular bundles shown are radial and polyarch.
| I | II | III | |
| 1. | T | T | T |
| 2. | F | F | F |
| 3. | F | F | T |
| 4. | T | T | F |
Subtopic: Anatomy of Root |
71%
From NCERT
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Which layer is most likely to have passage cells?
| 1. | Pericycle | 2. | Epidermis |
| 3. | Endodermis | 4. | Cortex |
Subtopic: Ground Tissue System |
58%
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In isobilateral (monocotyledonous) leaf:
1. Only I and II are correct
2. Only II and III are correct
3. I, II and III are correct
4. Only III is correct
| I: | The stomata are present on both the surfaces of the epidermis. |
| II: | The mesophyll is not differentiated into palisade and spongy parenchyma. |
| III: | The parallel venation in monocot leaves is reflected in the near similar sizes of vascular bundles (except in main veins) as seen in vertical sections of the leaves. |
2. Only II and III are correct
3. I, II and III are correct
4. Only III is correct
Subtopic: Monocot Leaf |
83%
From NCERT
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Conjoint vascular bundles are commonly seen in:
| 1. | Stems only | 2. | Root and Stems |
| 3. | Stems and Leaves | 4. | Root, Stems and Leaves |
Subtopic: Vascular Tissue System |
79%
From NCERT
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Derdrochronometer is used to measure/count?
1. Ring in tree for age measurement
2. width of tree
3. length of trees
4. types of wood
1. Ring in tree for age measurement
2. width of tree
3. length of trees
4. types of wood
Subtopic: Types of Wood (OLD NCERT) |
84%
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The given diagrams show stomatal apparatus in dicots and monocots. Which one is the correct option for A, B, and C?
| 1. | A-Epidermal cells; B-Subsidiary cells; C-chloroplast |
| 2. | A-Guard cells; B-Subsidiary cells; C-Stomatal pore |
| 3. | A-Guard cells; B-Epidermal cells; C-Guard cells |
| 4. | A-Epidermal cells; B-Subsidiary cells; C-Guard cells |
Subtopic: Epidermal Tissue System |
81%
From NCERT
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Which of the following is not the feature of gymnosperms?
1. Parallel venation
2. Perennial plants
3. Distinct branches (long and short branches)
4. Xylem with vessels
1. Parallel venation
2. Perennial plants
3. Distinct branches (long and short branches)
4. Xylem with vessels
Subtopic: Complex Tissue: Xylem |
84%
From NCERT
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