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Q. No.Read the following statements and choose the set of correct statements:
In the members of Phaeophyceae,
Choose the correct answer from the options given below:
In the members of Phaeophyceae,
| A: | Asexual reproduction occurs usually by biflagellate zoospores. |
| B: | Sexual reproduction is by oogamous method only. |
| C: | Stored food is in the form of carbohydrates which is either mannitol or laminarin. |
| D: | The major pigments found are chlorophyll a, c and carotenoids and xanthophyll. |
| E: | Vegetative cells have a cellulosic wall, usually covered on the outside by gelatinous coating of algin. |
| 1. | B, C, D and E only | 2. | A, C, D and E only |
| 3. | A, B, C and E only | 4. | A, B, C and D only |
Subtopic: Pheophyceae: Brown Algae |
77%
Level 2: 60%+
NEET - 2024
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Which classes of algae possess pigment fucoxanthin and pigment phycoerythrin, respectively?
1. Phaeophyceae and Chlorophyceae
2. Phaeophyceae and Rhodophyceae
3. Chlorophyceae and Rhodophyceae
4. Rhodophyceae and Phaeophyceae
1. Phaeophyceae and Chlorophyceae
2. Phaeophyceae and Rhodophyceae
3. Chlorophyceae and Rhodophyceae
4. Rhodophyceae and Phaeophyceae
Subtopic: Pheophyceae: Brown Algae | Rhodophyceae: Red Algae and Importance of Algae |
90%
Level 1: 80%+
NEET - 2023
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Read the following statements and identify the characters related to the alga shown in the diagram:
| a. | It is a member of Chlorophyceae. |
| b. | Food is stored in the form of starch. |
| c. | It is a monoecious plant showing oogonium and antheridium. |
| d. | Food is stored in the form of laminarin or mannitol. |
| e. | It shows dominance of pigments chlorophyll a, c and Fucoxanthin. |
| 1. | (a) and (b) only | 2. | (a), (b) and (c) only |
| 3. | (a), (c) and (d) only | 4. | (c), (d) and (e) only |
Subtopic: Chlorophyceae: Green Algae: I |
51%
Level 3: 35%-60%
NEET - 2022
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Match List-I with List-II:
Choose the correct answer from the options given below:
| List-I | List-II | ||
| (a) | Chlamydomonas | (i) | Moss |
| (b) | Cycas | (ii) | Pteridophyte |
| (c) | Selaginella | (iii) | Alga |
| (d) | Sphagnum | (iv) | Gymnosperm |
| (a) | (b) | (c) | (d) | |
| 1. | (iii) | (i) | (ii) | (iv) |
| 2. | (iii) | (iv) | (ii) | (i) |
| 3. | (iii) | (ii) | (i) | (iv) |
| 4. | (ii) | (iii) | (i) | (iv) |
Subtopic: Algae | Bryophytes | Pteridophytes | Gymnosperms |
91%
Level 1: 80%+
NEET - 2022
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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 |
74%
Level 2: 60%+
NEET - 2022
Hints
Which of the following is incorrectly matched?
1. Volvox - Starch
2. Ectocarpus - Fucoxanthin
3. Ulothrix - Mannitol
4. Porphyra - Floridian starch
1. Volvox - Starch
2. Ectocarpus - Fucoxanthin
3. Ulothrix - Mannitol
4. Porphyra - Floridian starch
Subtopic: Chlorophyceae: Green Algae: I |
81%
Level 1: 80%+
NEET - 2022
Hints
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 |
88%
Level 1: 80%+
NEET - 2016
Hints
Subtopic: Pheophyceae: Brown Algae |
71%
Level 2: 60%+
NEET - 2015
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Links
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 |
62%
Level 2: 60%+
NEET - 2013
Hints
Select the wrong statement:
| 1. | Anisogametes differ either in structure, function or behaviour |
| 2. | In Oomycetes, the female gamete is smaller and motile, while the male gamete is larger and non-motile |
| 3. | Chlamydomonas exhibits both isogamy and anisogamy and Fucus shows oogamy |
| 4. | Isogametes are similar in structure, function and behaviour |
Subtopic: Algae |
79%
Level 2: 60%+
AIPMT - 2013
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