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Q. No.Plant growth is considered indeterminate because:
| 1. | Plants stop growing after reaching a certain size |
| 2. | Plants have a fixed number of cells |
| 3. | Plants can grow throughout their lifetime due to meristematic tissues |
| 4. | Plant growth is limited to specific seasons |
Subtopic: Growth |
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In geometric growth, the equation W₁ = W₀ eʳᵗ is used, where 'r' represents:
| 1. | Initial size | 2. | Final size |
| 3. | Relative growth rate | 4. | Time of growth |
Subtopic: Growth |
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Consider the given two statements:
| Statement I: | In arithmetic growth, after mitotic division, only one daughter cell continues to divide while the other differentiates and matures. |
| Statement II: | In geometrical growth, both daughter cells retain the ability to divide, leading to exponential growth. |
| 1. | Both Statement I and Statement II are correct. |
| 2. | Statement I is correct, but Statement II is incorrect. |
| 3. | Statement I is incorrect, but Statement II is correct. |
| 4. | Both Statement I and Statement II are incorrect. |
Subtopic: Growth |
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The irreversible increase in dry mass of a plant, resulting from cell division and cell enlargement, is defined as what process in plant physiology?
1. Photosynthesis
2. Respiration
3. Growth
4. Transpiration
1. Photosynthesis
2. Respiration
3. Growth
4. Transpiration
Subtopic: Growth |
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In cells, growth is primarily brought about by:
| 1. | Cell division only |
| 2. | Cell enlargement only |
| 3. | Both cell division and cell enlargement |
| 4. | Differentiation |
Subtopic: Growth |
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The exponential growth of an organism or a part of an organism can be expressed as W1 = W0 ert, where e is:
| 1. | final size (weight, height, number etc.) |
| 2. | initial size at the beginning of the period |
| 3. | growth rate |
| 4. | base of natural logarithms |
Subtopic: Growth |
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How is growth in plants different from growth in animals?
| 1. | Plant growth is determinate, while animal growth is indeterminate. |
| 2. | Plant growth is generally not localized to specific regions, while animal growth is localized. |
| 3. | Plants do not exhibit cellular differentiation during growth, whereas animals do. |
| 4. | Plants grow throughout their lifespan, while animals stop growing after a certain age. |
Subtopic: Growth |
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The arithmetic growth is exemplified by:
| 1. | A root elongating at a constant rate |
| 2. | The equation, \(L_t = L_0 + rt\) |
| 3. | A linear curve is obtained graphically when the length of an organ is plotted against time |
| 4. | All of the above |
Subtopic: Growth Model |
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The sigmoid growth and arithmetic growth can be represented graphically, respectively, as:
| 1. |  |
| 2. |  |
| 3. |  |
| 4. |  |
Subtopic: Growth Model |
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In an idealized sigmoid (S-shaped) growth curve, which of the following phases represents the period of maximum exponential growth in a plant?
| 1. | Lag phase, where initial slow growth occurs. |
| 2. | Log (exponential) phase, where growth rate increases rapidly. |
| 3. | Stationary phase, where growth rate stabilizes. |
| 4. | Senescence phase, where growth rate declines as nutrients become limiting. |
Subtopic: Growth | Growth Model |
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