Q. No.In chlorophyceae and phaeophyceae, the type of sexual reproduction is
| 1. | Isogamous |
| 2. | Anisogamous |
| 3. | Oogamous |
| 4. | All of the above |
Subtopic: Chlorophyceae: Green Algae: III | Pheophyceae: Brown Algae | Chlorophyceae: Green Algae |
96%
Level 1: 80%+
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In brown algae, food is stored as :
| 1. | Oil droplets and protein |
| 2. | Complex carbohydrates which may be in the form of laminarin or mannitol |
| 3. | Agar-agar |
| 4. | Carrageen |
Subtopic: Pheophyceae: Brown Algae |
92%
Level 1: 80%+
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The characteristic pigment found in brown algae is
| 1. | Phycocyanin |
| 2. | Fucoxanthin |
| 3. | Phycoerytherin |
| 4. | Haematochrome |
Subtopic: Pheophyceae: Brown Algae |
94%
Level 1: 80%+
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Asexual reproduction by pear shaped biflagellate zoospores is seen in most:
| 1. | Green algae | 2. | Brown algae |
| 3. | Red algae | 4. | Both 2 and 3 |
Subtopic: Pheophyceae: Brown Algae |
92%
Level 1: 80%+
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Asexual reproduction in brown algae is by:
| 1. | biflagellate biconcave disc shaped zoospores |
| 2. | non-motile spherical aplanogametes |
| 3. | biflagellate pear shaped zoospores |
| 4. | non-motile zoospores produced in zoosporangia |
Subtopic: Pheophyceae: Brown Algae |
89%
Level 1: 80%+
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Subtopic: Pheophyceae: Brown Algae |
89%
Level 1: 80%+
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Which of the following is not an example of red algae?
1. Polysiphonia
2. Porphyra
3. Gracilaria
4. Laminaria
Subtopic: Pheophyceae: Brown Algae | Rhodophyceae: Red Algae and Importance of Algae |
89%
Level 1: 80%+
Hints
Match each item in Column I with one in Column II and select the correct match from the codes given:
Codes:
| Column I [Algal class] |
Column II [Feature of flagella] |
||
| A | Chlorophyceae | P | 2, unequal, lateral |
| B | Phaeophyceae | Q | Absent |
| C | Rhodophyceae | R | 2-8, equal, apical |
| A | B | C | |
| 1. | R | P | Q |
| 2. | R | Q | P |
| 3. | P | R | Q |
| 4. | Q | R | P |
Subtopic: Pheophyceae: Brown Algae | Rhodophyceae: Red Algae and Importance of Algae | Chlorophyceae: Green Algae |
88%
Level 1: 80%+
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The leaf-like photosynthetic organ in brown algae is called as:
1. Holdfast
2. Stipe
3. Frond
4. Rhizoid
Subtopic: Pheophyceae: Brown Algae |
86%
Level 1: 80%+
Hints
Ectocarpus is
| 1. | Unicellular green algae |
| 2. | Filamentous brown algae |
| 3. | Branched red algae |
| 4. | Colonial green algae |
Subtopic: Pheophyceae: Brown Algae |
85%
Level 1: 80%+
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