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Q. No.Match the following types of placentation with examples:
Column I
Column II
I.
Marginal
A.
China rose
II.
Axile
B.
Argemone
III.
Parietal
C.
Marigold
IV.
Basal
D.
Pea
1. I-B, II-A, III-D, IV-C
2. I-D, II-A, III-B, IV-C
3. I-C, II-D, III-A, IV-B
4. I-A, II-B, III-C, IV-D
Subtopic: Flower & Parts of Flower |
94%
From NCERT
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Identify the incorrect statement about racemose inflorescence:
| 1. | The main axis continues to grow. |
| 2. | Flowers are borne acropetally on the axis. |
| 3. | It is a type of compound inflorescence. |
| 4. | The youngest flower is at the apex. |
Subtopic: Inflorescence |
From NCERT
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Identify the correct statements:
| I: | Leaves originate from shoot apical meristem and are arranged in an acropetal order. |
| II: | Monocotyledonous plants generally possess reticulate venation. |
| III: | A bud is present in the axil of petiole in simple leaf but not in compound leaf. |
| IV: | In cymose inflorescence, flowers are borne in a basipetal order. |
| 1. | I and II | 2. | I and IV |
| 3. | II and III | 4. | III and IV |
Subtopic: Morphology of Leaf | Flower & Parts of Flower |
85%
From NCERT
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Consider the given two statements:
| Assertion (A): | The presence of pulvini at the base of the leaf in some plants allows for leaf movement. |
| Reason (R): | Pulvini are swellings at the leaf base containing flexible cells that change shape in response to environmental stimuli. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A) |
| 3. | (A) is True but (R) is False. |
| 4. | (A) is False but (R) is True. |
Subtopic: Morphology of Leaf |
76%
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Which statement is not true about the roots in flowering plants?
| 1. | Fibrous roots are generally formed by monocots. |
| 2. | Adventitious roots are modified for mechanical support. |
| 3. | Tap roots are typically found in dicots and are modified for food storage. |
| 4. | All roots grow underground. |
Subtopic: Morphology of Roots |
89%
From NCERT
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Which of the following will not be true regarding mustard flower?
1. There are 4 petals arranged in a cross shape
2. Tetradynamous stamen
3. Inferior ovary
4. 4 sepals which are usually green
1. There are 4 petals arranged in a cross shape
2. Tetradynamous stamen
3. Inferior ovary
4. 4 sepals which are usually green
Subtopic: Flower & Parts of Flower |
89%
From NCERT
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Consider the given two statements:
| Assertion (A): | Rhizophora, a mangrove plant, has pneumatophores that emerge above the water level. |
| Reason (R): | Pneumatophores help in gaseous exchange and support the plant in anaerobic soil conditions. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Modification of Roots |
86%
From NCERT
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What defines a hypogynous flower?
1. The ovary is situated below the other floral parts.
2. The ovary is situated above the other floral parts.
3. The ovary is situated along with other floral parts.
4. The floral parts are attached to the top of the ovary.
1. The ovary is situated below the other floral parts.
2. The ovary is situated above the other floral parts.
3. The ovary is situated along with other floral parts.
4. The floral parts are attached to the top of the ovary.
Subtopic: Flower & Parts of Flower |
82%
From NCERT
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A slender lateral branch, arises from the base of main axis and after growing aerially for some time, arch downwards to touch the ground, in:
| 1. | Banana | 2. | Pineapple |
| 3. | Strawberry | 4. | Mint |
Subtopic: Modifications of Stem |
75%
From NCERT
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Consider the given two statements:
| Statement I: | A flower is a modified shoot wherein the shoot apical meristem changes to floral meristem. |
| Statement II: | When a shoot tip transforms into a flower, it is always solitary. |
| 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 |
96%
From NCERT
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