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Q. No.In some plants such as Rhizophora growing in swampy areas, many roots come out of the ground and grow vertically upwards. Such roots:
1. provide support to the plant
2. help to get oxygen for respiration
3. are organs of perennation for plants
4. act as storage organs
Subtopic: Modification of Roots |
98%
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Which floral part performs the function of attracting insect pollinators?
| 1. | Carpals | 2. | Stamens |
| 3. | Petals | 4. | Sepals |
Subtopic: Flower & Parts of Flower |
90%
From NCERT
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Subtopic: Flower & Parts of Flower |
81%
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Consider the given two statements:
| Statement I: | The stem develops from the plumule of the embryo of a germinating seed. |
| Statement II: | The region of the stem where leaves are born is called an internode. |
| 1. | Statement I is correct; Statement II is correct |
| 2. | Statement I is correct; Statement II is incorrect |
| 3. | Statement I is incorrect; Statement II is correct |
| 4. | Statement I is incorrect; Statement II is incorrect |
Subtopic: Morphology of Stems |
89%
From NCERT
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Consider the given two statements:
| Statement I: | The petiole helps hold the blade to light and long thin flexible petioles allow leaf blades to flutter in the wind. |
| Statement II: | The lamina or the leaf blade is the green expanded part of the leaf with veins and veinlets, with the midrib being the middle prominent vein. |
| 1. | Statement I is correct; Statement II is correct |
| 2. | Statement I is correct; Statement II is incorrect |
| 3. | Statement I is incorrect; Statement II is correct |
| 4. | Statement I is incorrect; Statement II is incorrect |
Subtopic: Morphology of Leaf |
99%
From NCERT
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Consider the given two statements:
| Statement I: | The fleshy leaves of onion and garlic store food. |
| Statement II: | In Australian acacia, the leaves are small and short-lived, and the petioles expand, become green, and synthesize food. |
| 1. | Statement I is correct; Statement II is correct |
| 2. | Statement I is correct; Statement II is incorrect |
| 3. | Statement I is incorrect; Statement II is correct |
| 4. | Statement I is incorrect; Statement II is incorrect |
Subtopic: Modification of Leaf |
96%
From NCERT
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Consider the given two statements:
| Statement I: | A typical flower has four different kinds of whorls arranged successively on the swollen end of the stalk or pedicel, called thalamus or receptacle. |
| Statement II: | Calyx and corolla are reproductive organs, while androecium and gynoecium are accessory organs. |
| 1. | Statement I is correct; Statement II is correct |
| 2. | Statement I is correct; Statement II is incorrect |
| 3. | Statement I is incorrect; Statement II is correct |
| 4. | Statement I is incorrect; Statement II is incorrect |
Subtopic: Flower & Parts of Flower |
98%
From NCERT
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Consider the given two statements:
| Statement I: | Flowers with bracts—reduced leaves found at the base of the pedicel—are called ebracteate. |
| Statement II: | A flower with floral appendages in multiples of 4 is called tetramerous. |
| 1. | Statement I is correct; Statement II is correct |
| 2. | Statement I is correct; Statement II is incorrect |
| 3. | Statement I is incorrect; Statement II is correct |
| 4. | Statement I is incorrect; Statement II is incorrect |
Subtopic: Flower & Parts of Flower |
86%
From NCERT
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Consider the given two statements:
| Statement I: | In dicotyledonous plants, the primary root formed by the elongation of the radicle is called the tap root. |
| Statement II: | In monocotyledonous plants, the primary root is long-lived and develops into a tap root system. |
| 1. | Statement I is correct; Statement II is correct |
| 2. | Statement I is correct; Statement II is incorrect |
| 3. | Statement I is incorrect; Statement II is correct |
| 4. | Statement I is incorrect; Statement II is incorrect |
Subtopic: Morphology of Roots |
98%
From NCERT
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Consider the given two statements:
| Statement I: | Some plants of arid regions modify their stems into flattened or fleshy cylindrical structures for photosynthesis. |
| Statement II: | Underground stems of some plants such as grass and strawberry spread to new niches and form new plants when older parts die. |
| 1. | Statement I is correct; Statement II is correct |
| 2. | Statement I is correct; Statement II is incorrect |
| 3. | Statement I is incorrect; Statement II is correct |
| 4. | Statement I is incorrect; Statement II is incorrect |
Subtopic: Modifications of Stem |
100%
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