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Chlorophyceae or Green Algae MCQ - Practice Questions with Answers
Edited By admin | Updated on Sep 18, 2023 18:34 AM | #NEET
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Chlorophyceae/ Green Algae is considered one of the most asked concept.
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30 Questions around this concept.
Solve by difficulty
Which one of the following shows isogamy with non-flagellated gametes?
Which one of the following is wrongly matched?
An example of colonial algae is:
NEET 2025: Syllabus | Most Scoring concepts | NEET PYQ's (2015-24)
Chlorella, a very good source of protein, belongs to
Which one of the following is wrong about chara?
Algae that is useful for prolonged space flight for the libration of oxygen, consumption of CO2, disposal of wastes, and formation of food is
Chlamydomonas does not occur in
Concepts Covered - 1
Chlorophyceae/ Green Algae
Chlorophyceae/ Green Algae:
- These are commonly called green algae because they are green in colour.
- These usually live in freshwater bodies. Some are found in brackish and marine waters.
- The green colouration is due to the presence of photosynthetic pigments Chlorophyll a and Chlorophyll b are present in chloroplasts. Carotenoids are also present in them.
- Chloroplasts may be discoid, reticulate, ribbon-like, star-like, cup-shaped etc.
- Each chloroplast has either one or more than one starch storing protein bodied called pyrenoids.
- Reserve food material is stored in the form of oil or starch.
- The cell wall has inner cellulose and outer pectin layers.
- Vegetative reproduction occurs by fragmentation or fission.
- Asexual reproduction occurs by the formation (Spirogyra - has non-motile isogamous gametes). In some, it takes place by Anisogamy and in others by Oogamy (Volvox)
- Ex: Chlamydomonas, Volvox, Spirogyra, Ulothrix, Chara
Economic importance of algae:
- Codium and Ulva are used as salad or vegetables.
- Chlorella is used by exobiologists for food, oxygen and disposal of CO2 in space flight.
- Cephaleuros causes red rust or tea disease.
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