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Q. No.Assertion(A): The ovary of guava and cucumber, and the disc florets of sunflowers are inferior.
Reason(R): In flowers with inferior ovary, the margin of the thalamus grows upward enclosing the ovary completely and getting fused with it.
Choices for Assertions and reasons:
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: Flower & Parts of Flower |
From NCERT
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Assertion(A): The floral features are represented in the summarized form as floral diagrams and floral formula.
Reason(R): The floral characteristics form the basis of classification and identification of flowering plants.
Choices for Assertions and reasons:
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.
Reason(R): The floral characteristics form the basis of classification and identification of flowering plants.
Choices for Assertions and reasons:
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: Families of Flowering Plant |
51%
From NCERT
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Sunderbans in West Bengal is a swampy area. The plants in this area bear special kind of roots called:
1. Pneumatophores
2. Prop roots
3. Stilt roots
4. Tuberous roots
1. Pneumatophores
2. Prop roots
3. Stilt roots
4. Tuberous roots
Subtopic: Modification of Roots |
93%
From NCERT
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In an epigynous flower, the ovary is situated:
| 1. | below other floral parts |
| 2. | above other floral parts |
| 3. | at the same level as other floral parts |
| 4. | not on the thalamus |
Subtopic: Flower & Parts of Flower |
77%
From NCERT
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At the root tip, which of the following regions will be the most ‘distal’?
| 1. | Region of meristematic activity |
| 2. | Region of root hairs |
| 3. | Region of maturation |
| 4. | Region of elongation |
Subtopic: Morphology of Roots |
From NCERT
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The flower cannot be divided into two similar halves by any vertical plane passing through the centre in:
| 1. | Canna | 2. | Pea |
| 3. | Mustard | 4. | Datura |
Subtopic: Flower & Parts of Flower |
87%
From NCERT
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The floral diagram describes the members of angiosperms belonging to the family:
1. Brassicaceae
2. Fabaceae
3. Liliaceae
4. Solanaceae
1. Brassicaceae
2. Fabaceae
3. Liliaceae
4. Solanaceae
Subtopic: Semi Technical Description | Families of Flowering Plant |
86%
From NCERT
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Consider the given two statements:
| Statement I: | Stem tendrils which develop from axillary buds are slender and spirally coiled and help plants to climb such as in Citrus and Bougainvillea. |
| Statement II: | Axillary buds of stems may get modified into woody, straight and pointed thorns found in many plants such as gourds and grapevines. |
| 1. | Statement I is correct; Statement II is correct |
| 2. | Statement I is incorrect; Statement II is correct |
| 3. | Statement I is correct; Statement II is incorrect |
| 4. | Statement I is incorrect; Statement II is incorrect |
Subtopic: Modifications of Stem |
67%
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 [Modification of plant part] |
COLUMN II [Example] |
||
| A | Leaf spine | P | Pea |
| B | Leaf tendril | Q | Bougainvillea |
| C | Stem tendril | R | Cucumber |
| D | Stem thorn | S | Cactus |
| A | B | C | D | |
| 1. | P | R | Q | S |
| 2. | S | R | P | Q |
| 3. | S | P | R | Q |
| 4. | S | P | Q | R |
Subtopic: Modification of Roots | Modifications of Stem |
76%
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 [Family] |
Column II [Floral diagram] |
||
| A | Brassicaceae | P |  |
| B | Fabaceae | Q |  |
| C | Solanaceae | R |  |
| D | Liliaceae | S |  |
| A | B | C | D | |
| 1. | Q | P | R | S |
| 2. | Q | P | S | R |
| 3. | P | Q | R | S |
| 4. | P | Q | S | R |
Subtopic: Semi Technical Description | Families of Flowering Plant: I | Families of Flowering Plant |
89%
From NCERT
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