Subtopic: Â Flower & Parts of Flower |
 81%
From NCERT
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Match each item in Column I with the one given in Column II and select the correct match from the codes given:
Codes:
| Column I [Position of Ovary] |
Column II [Type of flower] |
||
| A. | Inferior | P. | Hypogynous |
| B. | Half inferior | Q. | Perigynous |
| C. | Superior | R. | Epigynous |
Codes:
| A | B | C | |
| 1. | P | Q | R |
| 2. | P | R | Q |
| 3. | R | Q | P |
| 4. | R | P | Q |
Subtopic: Â Flower & Parts of Flower |
 86%
From NCERT
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The type of placentation shown in the given diagram is not seen in:
| 1. | Mustard | 2. | China rose |
| 3. | Tomato | 4. | Lemon |
Subtopic: Â Flower & Parts of Flower |
 69%
From NCERT
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Identify the incorrectly matched pair:
| 1. | Pericarp | Wall of the fruit |
| 2. | Perisperm | Residual, persistent nucellus |
| 3. | Perigynous | A flower with superior ovary |
| 4. | Perianth | Floral structure comprised of calyx and corolla especially when the two whorls are fused |
Subtopic: Â Fruits & their Types |
 88%
From NCERT
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Offsets, sub-aerial modifications of stem, are produced by
1. Meiotic divisions
2. Mitotic divisions
3. Parthenocarpy
4. Parthenogenesis
1. Meiotic divisions
2. Mitotic divisions
3. Parthenocarpy
4. Parthenogenesis
Subtopic: Â Aerial Stem Modification |
 74%
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Identify the correct statement(s) regarding the modifications seen in stems:
| I: | Stem tendrils develop from axillary buds and help plants, such as pea, to climb |
| II: | Opuntia modifies its stems into flattened structures to protect itself from browsing animals |
| III: | Underground stems of some plants such as grass and strawberry spread to new niches and when older plants die, new plants are formed. |
| 1. | I, II, and III |
| 2. | Only II and III |
| 3. | Only III |
| 4. | Only I and III |
Subtopic: Â Modifications of Stem |
From NCERT
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In cymose type of inflorescence:
| 1. | the main axis terminates in a flower and flowers are borne in basipetal order |
| 2. | the main axis continues to grow and the flowers are borne laterally in an acropetal order |
| 3. | the main axis terminates in a flower and flowers are borne in an acropetal order |
| 4. | the main axis continues to grow and the flowers are borne laterally in basipetal order |
Subtopic: Â Inflorescence |
 86%
From NCERT
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Consider the following statements about Mustard:
| I: | Its ovary is one-chambered but becomes two-chambered due to formation of a false septum |
| II: | There may be variation in the length of filaments within its flowers |
| III: | Its flower is zygomorphic |
| IV: | Its flowers are located at the rim of the thalamus almost at the same level |
| 1. | Only I and II are correct |
| 2. | All I, II, III and IV are correct |
| 3. | Only I, III and IV are correct |
| 4. | Only I, II and III are correct |
Subtopic: Â Flower & Parts of Flower |
 73%
From NCERT
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Match each item in Column 1 with an item in Column 2:
| Column 1 | Column 2 | ||
| A | Outer layer of the seed coat | P | Coleoptile |
| B | Inner layer of the seed coat | Q | Tegmen |
| C | Sheath enclosing the plumule | R | Coleorhiza |
| D | Sheath enclosing the radicle | S | Testa |
| A | B | C | D | |
| 1. | Q | S | P | R |
| 2. | S | Q | P | R |
| 3. | S | Q | R | P |
| 4. | Q | S | R | P |
Subtopic: Â Seed |
 83%
From NCERT
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Colchicum autumnale:
1. is non-endospermous
2. has dithecous anther
3. has reticulate venation
4. exhibits axile placentation
1. is non-endospermous
2. has dithecous anther
3. has reticulate venation
4. exhibits axile placentation
Subtopic: Â Semi Technical Description |
 58%
From NCERT
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