- 1(current)
Q. No.Match Column I [phase of growth] and Column II [cell characteristics] and choose the correct answer from the codes given:
| Column I | Column II | ||
| A. | Meristematic | a. | Increased vacuolation, new cell wall deposition |
| B. | Elongation | b. | Thin cellulosic wall with abundant plasmodesmatal connections |
| C. | Maturation | c. | Maximal wall thickening |
Codes
| A | B | C | |
| 1. | a | b | c |
| 2. | b | c | a |
| 3. | b | a | c |
| 4. | c | b | a |
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The optimum temperature range for proper growth in most plants is:
| 1. | \(0^\circ C - 100^\circ C\) | 2. | \(15^\circ C - 20^\circ C\) |
| 3. | \(28^\circ C - 30^\circ C\) | 4. | Greater than \(45^\circ C\) |
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To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Plants follow different pathways in response to environment or phases of life to form different kinds of structures. This ability is called:
| 1. Efficiency index | 2. Plasticity |
| 3. Norm of reaction | 4. Developmental noise |
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Plasticity in plant growth means that
1. Plant roots are extensible
2. Plant growth is dependent on the environment
3. Stems can extend
4. None of the above
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To differentiate into a tracheary element, a cell would:
| 1. | Gain protoplasm |
| 2. | Become multinucleate |
| 3. | Assimilate lot of collagen and elastin |
| 4. | Develop lignocellulosic secondary cell wall |
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To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Development is a term that includes all changes that a plant goes through during its life cycle:
| 1. | till germination of the seed |
| 2. | during its vegetative growth |
| 3. | from germination till flowering |
| 4. | from germination to senescence |
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To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Difference in shapes of leaves produced in air and those produced in water represents heterophyllous development due to environment in:
| 1. | Cotton | 2. | Coriander |
| 3. | Larkspur | 4. | Butter cup |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Plants follow different pathways in response to environment or phases of life to form different kinds of structures. This ability is called:
| 1. | Plasticity | 2. | Norm of the reaction |
| 3. | Development noise | 4. | Acclimatisation |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
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Q. No.
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