Q. No.Organisms responsible for causing ‘red tide’ are also
characterized by
1. Presence of stiff cellulosic plates.
2. Obligate saprophyte.
3. Presence of two longitudinal flagella.
4. Filamentous body made up of trichomes.
characterized by
1. Presence of stiff cellulosic plates.
2. Obligate saprophyte.
3. Presence of two longitudinal flagella.
4. Filamentous body made up of trichomes.
Group of organisms in which cell wall forms two thin overlapping shells are
1. Responsible for bioluminescence.
2. Chief producers of ocean.
3. Prokaryotes.
4. Heterotrophs.
Select incorrect statement with respect to the following group of organisms and their characteristics
| 1. | Chrysophyte | Includes diatoms and desmids, Planktonic organism. |
| 2. | Dinoflagellate | Mostly marine and photosynthetic, cell wall has stiff cellulosic plate on outer surface. |
| 3. | Euglenoids | Majority of them are fresh water, cell wall is absent. |
| 4. | Slime mould | Saprophytic motile spores with true walls |
According to R.H. Whittaker Chlamydomonas and
Chlorella will be kept under
1. Monera
2. Protista
3. Plantae
4. Both 2 & 3
Morels and Agaricus have edible fruiting bodies and
belong to their respective class as.
1. Ascomycetes and Basidiomycetes.
2. Basidiomycetes and Ascomycetes.
3. Ascomycetes and Phycomycetes.
4. Basidiomycetes only
An artificial group within fungi is
1. Ascomycetes
2. Deuteromycetes
3. Basidiomycetes
4. Phycomycetes
Which of the given statement is not true for viruses?
| 1. | They are nucleoproteins where protein is infectious in nature. |
| 2. | They can be crystallized and crystals consist largely of proteins. |
| 3. | Virus means venom or poisonous fluid. |
| 4. | A virus can never have both DNA and RNA as its genetic material. |
State True (T) or False (F) to the given statements and select the correct option
| (A) | Abundance of lichens in any area indicates that the area is highly polluted with SO2. |
| (B) | Mycobiont partner of lichens is always heterotrophic. |
| (C) | Body of lichens is made up of phycobionts only. |
(A) (B) (C)
1. T T F
2. F T F
3. F F F
4. T F F
After karyogamy followed by meiosis, spores are produced exogenously in
1. Neurospora
2. Saccharomyces
3. Agaricus
4. Alternaria
Heterotrophic, eukaryotic, multicellular organisms lacking a cell wall are included in the kingdom.
1. Protista
2. Fungi
3. Plantae
4. Animalia
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