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Q. No.Identify the incorrect statement:
1.
Ray florets of sunflower have epigynous flowers with inferior ovary.
2.
In vexillary aestivation, keel are the two largest posterior petals.
3.
Stamens are united into one bunch in China rose.
4.
Placentation is marginal in Pea.
Subtopic: Flower & Parts of Flower |
80%
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Identify the option where the features are correctly matched to types with respect to mustard:
| Flower symmetry | Ovary position | Androecium | Gynoecium | |
| 1. | Zygomorphic | Inferior | Variable length stamens within a flower | Parietal placnetation |
| 2. | Zygomorphic | Inferior | Polyadelphous | Marginal placentation |
| 3. | Actinomorphic | Superior | Polyadelphous | Axile placentation |
| 4. | Actinomorphic | Superior | Variable length stamens within a flower | Parietal placnetation |
Subtopic: Flower & Parts of Flower |
77%
From NCERT
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In pea:
| 1. | Flower is zygomorpohic, aestivation is vexillary, stamens are diadelphous and placentation is marginal. |
| 2. | Flower is actinomorpohic, aestivation is vexillary, stamens are diadelphous and placentation is axile. |
| 3. | Flower is zygomorpohic, aestivation is twisted, stamens are monodelphous and placentation is parietal. |
| 4. | Flower is actinomorpohic, aestivation is imbricate, stamens are diadelphous and placentation is marginal. |
Subtopic: Families of Flowering Plant |
84%
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: Flower & Parts of Flower |
85%
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: 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: Fruits & their Types |
88%
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: Flower & Parts of Flower |
71%
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: Seed |
83%
From NCERT
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Identify the incorrectly matched pair:
| Placentation | Example | |
| 1. | Marginal | Pea |
| 2. | Axile | China rose |
| 3. | Parietal | Primrose |
| 4. | Basal | Marigold |
Subtopic: Flower & Parts of Flower |
85%
From NCERT
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Identify the incorrectly matched pair:
| 1. | Having the sepals united | Gamosepalous |
| 2. | Sterile stamen | staminode |
| 3. | Stamens attached to perianth | Epiphyllous |
| 4. | Having the carpels of the gynoecium united in a compound ovary | Syncarpous |
Subtopic: Flower & Parts of Flower |
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