Multiple Choice Questions

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The chief advantage of encystment of an Amoeba is

  • protection from parasites and predators

  • the chance to get rid of accumulated waste products

  • the ability to survive during adverse physical conditions

  • the ability to live for sometime without ingesting food


C.

the ability to survive during adverse physical conditions

Encystment of Amoeba occurs regularly to tide over unfavourable conditions like drought and extreme temperature, etc. During these conditions, Amoeba forms a covering or cyst wall around itself.


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The oldest fossil belongs to which of the following group of plants/ animals?

  • Asteriodae

  • Rhodophyceae

  • Blue- green algae

  • Phaeophyceae


In Amoeba hyaline cap is formed by

  • around the food vacuole

  • around the contractile vacuole

  • around the nucleus

  • on pseudopodia


The cell wall of fungi is formed by

  • chitin and mannose

  • cellulose

  • glucose

  • None of the above


Powdery mildew of crops are caused by

  • bacteria

  • Ascomycetes

  • Basidiomycetes

  • Phycomycetes


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In which kingdom, would you classify the archaea and nitrogen-fixing organisms. If the five-kingdom system of classification is used?

  • Protista

  • Monera

  • Plantae

  • Fungi


Which of the following has multiflagellate sperms?

  • Equisetum

  • Riccia

  • Lycopodium

  • Anthoceros


Which of the following is important source of edible protein?

  • Spirogyra

  • Porphyra

  • spirulina

  • Cephaleuros


Name the fungus that is edible

  • Penicillium

  • Mucor

  • Rhizopus

  • Morchella


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In Whittaker's system of classification, prokaryotes belong to the kingdom

  • Monera

  • Protista

  • Animalia

  • Fungi


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