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Q. No.Isogamous condition with non-flagellated gametes are found in:
1. Spirogyra
2. Volvox
3. Fucus
4. Chlamydomonas
Subtopic: Chlorophyceae: Green Algae: I | Chlorophyceae: Green Algae |
87%
AIPMT - 2013
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Hints
Monoecious plant of Chara shows the occurrence of:
| 1. | Stamen and carpel of the same plant |
| 2. | upper antheridium and lower oogonium on the same plant |
| 3. | upper ooganium and lower antheridium on the same plant |
| 4. | antheridiophore and archegoniophore on the same plant |
Subtopic: Chlorophyceae: Green Algae: I | Chlorophyceae: Green Algae |
72%
AIPMT - 2013
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Hints
Read the following statements (A-E) and answer the question which follows them.
| A: | In liverworts, mosses, and ferns gametophytes are free-living |
| B: | Gymnosperms and some ferns are hetero-sperms |
| C: | Sexual reproduction in Fucus, Volvox and Albugo is oogamous |
| D: | The sporophyte in liverworts is more elaborate than that in mosses |
| E: | Both, Pinus and Marchantia are dioecious |
How many of the above statements are correct?
1. Two
2. Three
3. Four
4. One
Subtopic: Algae | Bryophytes | Gymnosperms: I | Gymnosperms |
56%
From NCERT
AIPMT - 2013
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NEET 2023 - Target Batch - Aryan Raj Singh
Cycas and Adiantum resemble each other in having:
1. Seeds
2. Motile sperms
3. Cambium
4. Vessels
Subtopic: Pteridophytes: Heterospory | General Accounts of Gymnosperms: II | Gymnosperms |
AIPMT - 2012
Please attempt this question first.
Hints
Which one of the following is a correct statement?
| 1. | Pteridophyte gametophyte has a protonemal and leafy stage |
| 2. | In gymnosperms, female gametophyte is free-living |
| 3. | Antheridiophores and protonema are present in pteridophytes |
| 4. | Origin of seed habit can be traced in pteridophytes |
Subtopic: Pteridophytes |
74%
From NCERT
AIPMT - 2012
Please attempt this question first.
Hints
Please attempt this question first.
Compared with the gametophytes of the bryophytes, the gametophytes of vascular plants tends to be:
1. larger but to have smaller sex organs
2. larger and to have large sex organs
3. smaller and to have smaller sex organs
4. smaller but to have larger sex organs
1. larger but to have smaller sex organs
2. larger and to have large sex organs
3. smaller and to have smaller sex organs
4. smaller but to have larger sex organs
Subtopic: Pteridophytes: Heterospory |
AIPMT - 2011
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Hints
The gametophyte is not an independent, free-living generation in:
1. Adiantum
2. Marchantia
3. Pinus
4. Polytrichum
1. Adiantum
2. Marchantia
3. Pinus
4. Polytrichum
Subtopic: Gymnosperms: I | Gymnosperms |
81%
From NCERT
AIPMT - 2011
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
Mannitol is a sugar alcohol. It is as stored food in:
1. Fucus
2. Gracillaria
3. Chara
4. Porphyra
Subtopic: Pheophyceae: Brown Algae |
85%
From NCERT
AIPMT - 2011
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Links
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NEET 2023 - Target Batch - Aryan Raj Singh
Subtopic: Bryophytes (Liverworts) |
81%
From NCERT
AIPMT - 2011
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
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Links
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A prokaryotic autotrophic nitrogen-fixing symbiont is found in:
1. Cycas
2. Cicer
3. Pisum
4. Alnus
1. Cycas
2. Cicer
3. Pisum
4. Alnus
Subtopic: Gymnosperms: I | Gymnosperms |
85%
From NCERT
AIPMT - 2011
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
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