Q. No.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
1. Thallophytes that contain chlorophyll
2. Autotrophic
3. Body made of pseudo-parenchyma
4. Cellulosic cell wall
The gametes are pyriform and bear two laterally attached flagella in:
| 1. | Chlorophyceae | 2. | Phaeophyceae |
| 3. | Rhodophyceae | 4. | All algae |
Sexual reproduction takes place through non flagellated gametes that are similar in size in:
| 1. | Ulothrix | 2. | Spirogyra |
| 3. | Volvox | 4. | Fucus |
The microstrobilus in gymnosperms represents the:
| 1. | "female" cone | 2. | megasporangium-bearing cone |
| 3. | pollen-bearing cone | 4. | none of these |
A difference between a gymnosperm and an angiosperm would be:
1. Lack of a flower
2. Undeveloped vascular tissue
3. Xylem is mainly composed of vessels and phloem contains companion cell in angiosperms
4. Microspore grows into a pollen tube
Which of the following is not seen in red algae?
| 1. | 2 unequal flagella | 2. | Cellulose cell wall |
| 3. | Phycoerythrin | 4. | Floridean starch |
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
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
Prothallus is a:
| 1. | Multicellular, free-living, mostly photosynthetic thalloid gametophyte in pteridophytes |
| 2. | Multicellular, free-living, mostly photosynthetic thalloid sporophyte in pteridophytes |
| 3. | Multicellular, free-living, non photosynthetic thalloid gametophyte in pteridophytes |
| 4. | Multicellular, free-living, mostly photosynthetic well differentiated sporophyte in pteridophytes |
Gracilaria and Gelidium, that are source of Agar, belong to:
| 1. | Chlorophyceae | 2. | Rhodophyceae |
| 3. | Phaeophyceae | 4. | Fungi |
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