Q. No.In oogamy, fertilization involves:
| 1. | A large non-motile female gamete and a small motile male gamete |
| 2. | A large non-motile female gamete and a small non-motile male gamete |
| 3. | A large motile female gamete and a small non-motile male gamete |
| 4. | A small non-motile female gamete and a large motile male gamete |
Subtopic: Algae |
89%
From NCERT
AIPMT - 2004
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Fusion of two motile gametes which are dissimilar in size is termed as
1. oogamy
2. isogamy
3. anisogamy
4. zoogamy
Subtopic: Algae |
87%
From NCERT
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Subtopic: Algae |
88%
From NCERT
NEET - 2017
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Which one of the following shows isogamy with non-flagellated gametes?
1. Sargassum
2. Ectocarpus
3. Ulothrix
4. Spirogyra
Subtopic: Algae |
78%
From NCERT
AIPMT - 2014
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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 heterosporous |
| 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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Which one of the following is wrongly matched?
1. Spirogyra -Motile gametes
2. Sargassum - Chlorophyll C
3. Basidiomycetes - Puffballs
4. Nostoc- Water blooms
1. Spirogyra -Motile gametes
2. Sargassum - Chlorophyll C
3. Basidiomycetes - Puffballs
4. Nostoc- Water blooms
Subtopic: Algae |
58%
From NCERT
NEET - 2013
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Hydrocolloid carrageen is obtained from:
1. Phaeophyceae only
2. Chlorophyceae and Phaeophyceae
3. Phaeophyceae and Rhodophyceae
4. Rhodophyceae only
1. Phaeophyceae only
2. Chlorophyceae and Phaeophyceae
3. Phaeophyceae and Rhodophyceae
4. Rhodophyceae only
Subtopic: Algae |
73%
From NCERT
NEET - 2022
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Which of the following pairs is of unicellular algae?
1. Gelidium and Gracilaria
2. Anabaena and Volvox
3. Chlorella and Spirulina
4. Laminaria and Sargassum
Subtopic: Algae |
77%
From NCERT
NEET - 2020
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Which one of the following statements is wrong?
| 1. | Algae increase the level of dissolved oxygen in the immediate environment |
| 2. | Algin is obtained from red algae and carrageenan from brown algae |
| 3. | Agar-agar is obtained from Gelidium and Gracilaria |
| 4. | Laminaria and Sargassum are used as food |
Subtopic: Algae |
87%
From NCERT
NEET - 2016
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An alga which can be employed as food for human beings:
1. Ulothrix
2. Chlorella
3. Spirogyra
4. Polysiphonia
Subtopic: Algae | Chlorophyceae: Green Algae: I | Chlorophyceae: Green Algae: II | Chlorophyceae: Green Algae: III |
86%
From NCERT
AIPMT - 2014
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