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Q. No.Roots are modified to provide mechanical support as seen in:
I:
prop roots of banyan
II:
stilt roots of maize
III:
betel/black where nodes and internodes bear roots that help in climbing
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II, and III are correct
Subtopic: Modification of Roots | Modifications of Stem |
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Runner, a stem modification for vegetative propagation, is found in all of the following except:
1. Cyanodon dactylon
2. Oxalis
3. Pistia
4. Marsilea
1. Cyanodon dactylon
2. Oxalis
3. Pistia
4. Marsilea
68%
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How many of the given pairs are correctly matched?
1. 1
2. 2
3. 3
4. 4
| Leaf modification for | Example | |
| A: | Protection | Argemone |
| B: | Mechanical support | Pea |
| C: | Storage of food | Onion |
| D: | Trapping insects | Nepenthes |
2. 2
3. 3
4. 4
Subtopic: Modification of Leaf |
From NCERT
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Regarding regions of roots in angiosperms
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II, and III are correct
| I: | the apex is covered by a thimble-like structure called the root cap |
| II: | cells of the region of meristematic activity divide repeatedly |
| III: | Root hairs are found in the region of elongation |
2. Only I and III are correct
3. Only II and III are correct
4. I, II, and III are correct
Subtopic: Morphology of Roots |
84%
From NCERT
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The phyllotaxy shown in the given figure is seen in:
1. Alstonia
2. Calotropis
3. China rose
4. Guava
1. Alstonia
2. Calotropis
3. China rose
4. Guava
Subtopic: Morphology of Leaf |
78%
From NCERT
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How many of the given pairs are correctly matched?
1. 0
2. 1
3. 2
4. 3
| A: | Actinomorphic flower | Pea |
| B: | Zygomorphic flower | Mustard |
| C: | Asymmetric flower | Canna |
2. 1
3. 2
4. 3
Subtopic: Flower & Parts of Flower |
75%
From NCERT
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The ovary is superior and the flower is hypogynous in:
1. Guava
2. Brinjal
3. Cucumber
4. Ray florets of sunflower
1. Guava
2. Brinjal
3. Cucumber
4. Ray florets of sunflower
Subtopic: Flower & Parts of Flower |
84%
From NCERT
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Match each item in Column I with one in Column II and select the correct match from the codes given:
Codes:
| Column I [Aestivation type] |
Column II [Example] |
||
| A. | Valvate | P. | Lady’s finger |
| B. | Twisted | Q. | Bean |
| C. | Imbricate | R. | Calotropis |
| D. | Vexillary | S. | Cassia |
| A | B | C | D | |
| 1. | P | R | Q | S |
| 2. | R | P | Q | S |
| 3. | R | P | S | Q |
| 4. | P | R | S | Q |
Subtopic: Flower & Parts of Flower |
84%
From NCERT
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How many of the given statements are true?
1. 1
2. 2
3. 3
4. 4
| A: | When stamens are attached to the petals, they are epipetalous as in brinjal |
| B: | When stamens are attached to the perianth, they are epiphyllous as in lily |
| C: | The stamens may be united into one bunch or one bundle (monadelphous) as in China rose |
| D: | There may be a variation in the length of filaments within a flower, as in Salvia and mustard |
2. 2
3. 3
4. 4
Subtopic: Flower & Parts of Flower |
83%
From NCERT
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Identify A, B, and C in the given figure:
| A | B | C | |
| 1. | Aleurone layer | Scutellum | Endosperm |
| 2. | Scutellum | Endosperm | Aleurone layer |
| 3. | Aleurone layer | Endosperm | Scutellum |
| 4. | Endosperm | Scutellum | Aleurone layer |
Subtopic: Seed |
80%
From NCERT
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