Q. No.Seed coat is membranous and generally fused with the fruit wall in:
| 1. | Apple | 2. | Maize |
| 3. | Coconut | 4. | Castor |
Subtopic: Seed |
63%
From NCERT
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Subtopic: Seed |
88%
From NCERT
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Generally, monocotyledonous seeds are endospermic. An important exception may be:
| 1. | Rice | 2. | Wheat |
| 3. | Orchids | 4. | Pea |
Subtopic: Seed |
84%
From NCERT
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Scutellum is:
| 1. | shield shaped cotyledon in monocotyledons |
| 2. | protein layer in the outer endosperm in monocotyledons |
| 3. | starchy endosperm of dicotyledons |
| 4. | stony hard seed coat in some seeds |
Subtopic: Seed |
88%
From NCERT
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The sheath covering the plumule in monocotyledonous seeds is called as:
| 1. | Coleorrhiza | 2. | Coleoptile |
| 3. | Testa | 4. | Tegmen |
Subtopic: Seed |
88%
From NCERT
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Match each item in Column I regarding structure of a dicotyledonous seed with description in Column II and select the correct option from the codes given below:
|
|
Column I |
|
Column II |
|
A. |
Testa |
a. |
Outer layer of seed coat |
|
B. |
Tegmen |
b. |
Inner layer of seed coat |
|
C. |
Hilum |
c. |
Scar on seed coat through which the developing seeds were attached to the fruit |
|
D. |
Micropyle |
d. |
Small pore through which pollen tube penetrates |
Codes
| A | B | C | D | |
| 1. | a | b | c | d |
| 2. | b | a | c | d |
| 3. | b | a | d | c |
| 4. | a | b | d | c |
Subtopic: Seed |
88%
From NCERT
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Consider the given two statements:
1. Statement I is correct and statement II is incorrect
2. Statement I is incorrect and statement II is correct
3. Statement I and statement II are incorrect
4. Statement I and statement II are correct
| Statement I: | A proteinaceous material, usually in the form of small granules, occurring in the outermost cell layer of the endosperm of wheat and other grains are called as aleurone layer. |
| Statement II: | The radical in a monocot seed is enclosed in a sheath called as coleoptiles. |
2. Statement I is incorrect and statement II is correct
3. Statement I and statement II are incorrect
4. Statement I and statement II are correct
Subtopic: Seed |
72%
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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What structure covers the embryonic root in monocots?
1. hypodermis
2. scutellum
3. coleorhiza
4. radicle
1. hypodermis
2. scutellum
3. coleorhiza
4. radicle
Subtopic: Seed |
79%
From NCERT
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Identify the correct statements regarding a typical dicot seed:
1. Only I
2. Only II and III
3. Only III
4. I, II and III
| I. | The seed coat has two layers, the inner testa and the outer tegmen. |
| II. | The hilum is a scar on the seed coat through which the developing seeds were attached to the fruit. |
| III. | At the two ends of the embryonal axis are present the radicle and the plumule. |
1. Only I
2. Only II and III
3. Only III
4. I, II and III
Subtopic: Seed |
58%
From NCERT
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