- 1(current)
Q. No.Identify the tissue system from among the following:
| 1. Parenchyma | 2. Xylem |
| 3. Epidermis | 4. Phloem |
Subtopic: Epidermal Tissue System |
77%
From NCERT
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The epidermal tissue system in plants:
1. Only I and II are correct
2. Only III and IV are correct
3. Only I and III are correct
4. Only II and IV are correct
| I: | forms the outer-most covering of the whole plant body. |
| II: | comprises epidermal cells, stomata and the epidermal appendages – the trichomes and hairs. |
| III: | is usually multi-layered. |
| IV: | has parenchymatous cells without a vacuole. |
2. Only III and IV are correct
3. Only I and III are correct
4. Only II and IV are correct
Subtopic: Epidermal Tissue System |
90%
From NCERT
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The outside of the epidermis in plant body is often covered with a waxy thick layer called the cuticle which:
I: prevents the loss of water.
II: is present in roots.
1. I is correct; II is correct
2. I is incorrect; II is correct
3. I is incorrect; II is incorrect
4. I is correct; II is incorrect
I: prevents the loss of water.
II: is present in roots.
1. I is correct; II is correct
2. I is incorrect; II is correct
3. I is incorrect; II is incorrect
4. I is correct; II is incorrect
Subtopic: Epidermal Tissue System |
90%
From NCERT
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What would be true for A and B shown in the given diagram?
| 1. | A shows open stomatal aperture while B shows closed stomatal aperture |
| 2. | A shows closed stomatal aperture while B shows open stomatal aperture |
| 3. | A shows the stomata in grasses |
| 4. | B shows the stomata in grasses |
Subtopic: Epidermal Tissue System |
81%
From NCERT
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Guard cells:
1. are bean-shaped in grasses
2. have a thin inner and a thick outer wall
3. do not contain chloroplasts
4. regulate the opening and closing of stomata
1. are bean-shaped in grasses
2. have a thin inner and a thick outer wall
3. do not contain chloroplasts
4. regulate the opening and closing of stomata
Subtopic: Epidermal Tissue System |
90%
From NCERT
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Stomatal apparatus in the epidermal tissue system of plants consists of:
| 1. | Only stomatal aperture and guard cells but not subsidiary cells. |
| 2. | Only stomatal aperture but not guard cells and subsidiary cells. |
| 3. | Only guard cells and subsidiary cells but not stomatal aperture. |
| 4. | Stomatal aperture, guard cells and subsidiary cells but not other epidermal cells. |
Subtopic: Epidermal Tissue System |
95%
From NCERT
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The primary function of stomata in plant leave is to:
| 1. | Absorb water from the soil. |
| 2. | Exchange gases with the environment, primarily for photosynthesis and respiration. |
| 3. | Transport nutrients from the roots to other parts of the plant. |
| 4. | Protect against herbivores by secreting defensive compounds |
Subtopic: Epidermal Tissue System |
98%
From NCERT
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