Q. No.Cyanobacteria:
I.
are also referred to as ‘blue green algae’.
II.
are photosynthetic autotrophs with chlorophyll a similar to green plants.
III.
often form blooms in polluted water bodies.
IV.
some of them can fix atmospheric nitrogen in specialised cells called hetrocysts.
In light of the above given statements:
1.
Only I, II and IV are correct
2.
Only I, II and III are correct
3.
All statements are correct
4.
Only I and III are correct
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| 1. | They are important decomposers. |
| 2. | They are helpful in making curd from milk, production of antibiotics and fixing nitrogen in legume roots. |
| 3. | Some are pathogens causing damage to human beings, crops, farm animals and pets. |
| 4. | Almost all help in recycling nutrients like nitrogen, phosphorus, iron and sulphur. |
In NCERT textbook which of the following are not included in Kingdom Protista?
| 1. | Chrysophytes | 2. | Dinoflagellates |
| 3. | Protozoa | 4. | Blue green algae |
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Consider the given statements regarding slime moulds:
| Statement I: | Under unfavourable conditions they form a plasmodium. |
| Statement II: | During favourable conditions, the plasmodium differentiates and forms fruiting bodies bearing spores at their tips. |
| Statement III: | The spores bear true walls. |
| Statement IV: | The spores are dispersed by water. |
1. Only Statement I and Statement II are correct
2. Only Statement III is correct
3. All statements are incorrect
4. Only Statement III and Statement IV are correct
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Identify the incorrect statement regarding body organization in fungi:
| 1. | With the exception of yeast, fungi are filamentous. |
| 2. | Their bodies consist of long, slender hyphae that may be coenocytic or septate. |
| 3. | The network of hyphae is known as the mycelium. |
| 4. | The cell walls of fungi lack chitin and polysachharides. |
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Which of the following is not used in asexual reproduction in fungi?
| 1. | Conidia | 2. | Sporangiospores |
| 3. | Zoospores | 4. | Ascospores |
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Mucor, Rhizopus [the bread mould] and Albugo [the parasitic fungi on mustard] belong to:
| 1. | Phycomycetes | 2. | Ascomycetes |
| 3. | Basidiomycetes | 4. | Deuteromycetes |
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Which of the following is not true regarding members of Dueteromycetes?
| 1. | Mycelium is septate and branched. |
| 2. | Many are decomposers and help in mineral cycling. |
| 3. | They reproduce only by asexual spores called as conidia. |
| 4. | They include Agaricus, Claviceps and Colletotrichum. |
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| I: | Bladderwort and Venus flytrap are insectivorous. |
| II: | Cuscuta is parasitic. |
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
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Which of the following will not be true for members of Kingdom Animalia?
| 1. | They all are multicellular |
| 2. | Mode of nutrition is heterotrophic – holozoic |
| 3. | Most are capable of locomotion |
| 4. | They do not follow a definite growth plan |
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