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Q. No.Which of the following is not true regarding the structure of the cell wall in members of various Kingdoms in Whittaker’s classification system?
1.
It is composed of polysaccharides and amino acids in Monera.
2.
All members of Kingdom Protista have a cell wall, usually cellulosic.
3.
Cell wall with chitin is present in Fungi.
4.
Animals lack a cell wall in their cells.
Subtopic: Different Classification Systems |
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Consider the given two statements:
| Statement I: | Archaebacteria can survive in extreme conditions. |
| Statement II: | Methanogens are archaebacteria. |
| 1. | Statement I is correct; Statement II is correct |
| 2. | Statement I is incorrect; Statement II is correct |
| 3. | Statement I is correct; Statement II is incorrect |
| 4. | Statement I is incorrect; Statement II is incorrect |
Subtopic: Kingdom Monera: Bacterial Life Process |
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What kind of bacteria play a great role in recycling nutrients like nitrogen, phosphorous, iron and sulphur?
1. Photoautotrophs
2. Photoheterotrophs
3. Chemosynthetic autotrophs
4. Methanogens
1. Photoautotrophs
2. Photoheterotrophs
3. Chemosynthetic autotrophs
4. Methanogens
Subtopic: Kingdom Monera: Bacterial Life Process |
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What will not be true for spores in slime moulds?
| 1. | They are borne on fruiting bodies formed by plasmodium during favourable conditions. |
| 2. | They possess true walls. |
| 3. | They are extremely resistant and survive for many years. |
| 4. | They are dispersed by air currents. |
Subtopic: Kingdom Protista: Slime Moulds |
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Which of the following is not a fungus?
1. Causative agent of white spots on mustard
2. Source of penicillin
3. Wheat-rust causing organism
4. Causative agent of citrus canker
1. Causative agent of white spots on mustard
2. Source of penicillin
3. Wheat-rust causing organism
4. Causative agent of citrus canker
Subtopic: Kingdom Fungi: Introduction |
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Coenocytic hyphae:
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
| I. | are continuous tubes filled with multinucleated cytoplasm. |
| II. | have septae or cross walls. |
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Kingdom Fungi: Zygomycetes |
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Plasmogamy is not immediately followed by karyogamy in:
1. Ascomycetes and basidiomycetes
2. Ascomycetes and phycomycetes
3. Deuteromycetes and basidiomycetes
4. Deuteromycetes and phycomycetes
1. Ascomycetes and basidiomycetes
2. Ascomycetes and phycomycetes
3. Deuteromycetes and basidiomycetes
4. Deuteromycetes and phycomycetes
Subtopic: Kingdom Fungi: Sexual Reproduction in Fungi |
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Identify the incorrect statements regarding phycomycetes:
1. None, all are correct
2. Only III
3. Only II, III, IV and V
4. Only I
| I. | Found in aquatic habitats and on decaying wood in moist and damp places or as obligate parasites on plants. |
| II. | Mycelium is aseptate and coenocytic. |
| III. | Asexual reproduction takes place by zoospores (motile) or by aplanospores (non-motile). |
| IV. | These spores are endogenously produced in sporangium. |
| V. | A zygospore is formed by the fusion of two gametes. |
1. None, all are correct
2. Only III
3. Only II, III, IV and V
4. Only I
Subtopic: Kingdom Fungi: Phycomycetes |
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The fungal class ascomycetes does not include:
1. Morels and truffles
2. Neurospora and Claviceps
3. Aspergillus, Saccharomyces
4. Puff balls and smuts
1. Morels and truffles
2. Neurospora and Claviceps
3. Aspergillus, Saccharomyces
4. Puff balls and smuts
Subtopic: Kingdom Fungi: Ascomycetes |
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In basidiomycetes:
1. Statement I is correct; Statement II is correct
2. Statement I is incorrect; Statement II is correct
3. Statement I is correct; Statement II is incorrect
4. Statement I is incorrect; Statement II is incorrect
| Statement I: | The sex organs are absent, but plasmogamy is brought about by fusion of two vegetative or somatic cells of different strains or genotypes. |
| Statement II: | The basidiospores are exogenously produced on the basidium. |
1. Statement I is correct; Statement II is correct
2. Statement I is incorrect; Statement II is correct
3. Statement I is correct; Statement II is incorrect
4. Statement I is incorrect; Statement II is incorrect
Subtopic: Kingdom Fungi: Basidomycetes |
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