Hydrocolloid carrageen is obtained from:
1. Phaeophyceae only 
2. Chlorophyceae and Phaeophyceae
3. Phaeophyceae and Rhodophyceae
4. Rhodophyceae only
Subtopic:  Algae |
 73%
Level 2: 60%+
NEET - 2022
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Match List-I with List-II:
List-I List-II
(a) Chlamydomonas (i) Moss
(b) Cycas (ii) Pteridophyte
(c) Selaginella (iii) Alga
(d) Sphagnum (iv) Gymnosperm
Choose the correct answer from the options given below:
(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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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 |
 78%
Level 2: 60%+
NEET - 2020
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An example of colonial alga is
1. Chlorella
2. Volvox
3. Ulothrix
4. Spirogyra

Subtopic:  Algae |
 91%
Level 1: 80%+
NEET - 2017
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Links

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
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