Q. No.The leaf-like photosynthetic organ in brown algae is called as:
1. Holdfast
2. Stipe
3. Frond
4. Rhizoid
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Which of the following classes of algae store food that is chemically very similar to amylopectin and glycogen?
| 1. | Chlorophyceae | 2. | Phaeophyceae |
| 3. | Rhodophyceae | 4. | All algae |
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The cell wall polysaccharides of some red algae are the source of:
1. a sugar substitute
2. a source of salt
3. glucose for the study of photosynthesis
4. agar for growing bacteria and other organisms
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Which of the following is not true regarding algae?
1. Thallophytes that contain chlorophyll
2. Autotrophic
3. Body made of pseudo-parenchyma
4. Cellulosic cell wall
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The gametes are pyriform and bear two laterally attached flagella in:
| 1. | Chlorophyceae | 2. | Phaeophyceae |
| 3. | Rhodophyceae | 4. | All algae |
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Sexual reproduction takes place through non flagellated gametes that are similar in size in:
| 1. | Ulothrix | 2. | Spirogyra |
| 3. | Volvox | 4. | Fucus |
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Which of the following is not seen in red algae?
| 1. | 2 unequal flagella | 2. | Cellulose cell wall |
| 3. | Phycoerythrin | 4. | Floridean starch |
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Which of the following would not be true regarding importance of algae?
1. They increase level of dissolved oxygen in water
2. Many can be used as food source
3. They are the source of most antibiotics known to man
4. Products like hydrocolloids [algin] and agar are useful to man
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Identify the incorrect statement regarding red algae:
1. Major pigments are chlorophyll a, c and phycocyanin
2. Stored food is floridean starch
3. Cellulosic cell wall with pectin and polysulfate esters
4. Absent flagellar insertions
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