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Q. No.Meristematic tissue in vascular bundle is
1. phellem
2. procambium
3. interfascicular cambium
4. fascicular cambium
Subtopic: Activity of Vascular Cambium (OLD NCERT) |
From NCERT
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Vessels and companion cells are found in
1. angiosperm
2. pteridophytes
3. bryophytes
4. thallophytes
1. angiosperm
2. pteridophytes
3. bryophytes
4. thallophytes
Subtopic: Complex Tissue: Xylem |
92%
From NCERT
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At some places the cambium form a narrow band of parenchyma, which passes through the secondary xylem and the secondary phloem in radial directions. What is this called
1. Secondary medullary Rays
2. Casparian strip
3. Pericycle
4. Vascular cambium
1. Secondary medullary Rays
2. Casparian strip
3. Pericycle
4. Vascular cambium
Subtopic: Activity of Vascular Cambium (OLD NCERT) |
76%
From NCERT
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Isobilateral (Monocotyledonous) leaf:
Choose the correct answer from the options given below:
1. A, B and D only
2. C and D only
3. B and D only
4. A and D only
| A: | exhibits reticulate venation |
| B: | mesophyll is differentiated into palisade and spongy parenchyma |
| C: | mesophyll is not differentiated into palisade and spongy parenchyma |
| D: | In grasses, certain adaxial epidermal cells along the veins modify into bulliform cells |
1. A, B and D only
2. C and D only
3. B and D only
4. A and D only
Subtopic: Monocot Leaf |
84%
From NCERT
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Which of the following theory gives the latest explanation for the closure of stomata?
1. ABA theory
2. Munch theory
3. Starch glucose theory
4. Active K+ transport theory
1. ABA theory
2. Munch theory
3. Starch glucose theory
4. Active K+ transport theory
Subtopic: Epidermal Tissue System |
60%
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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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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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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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Interfascicular cambium and cork cambium are formed due to
1. Cell division
2. Cell differentiation
3. Cell dedifferentiation
4. Redifferentiation
1. Cell division
2. Cell differentiation
3. Cell dedifferentiation
4. Redifferentiation
Subtopic: Activity of Vascular Cambium (OLD NCERT) |
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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