Nuclear mebrane is absent in

  • Option 1)

    Penicillium

  • Option 2)

    Agaricus

  • Option 3)

    Volvox

  • Option 4)

    Nostoc

 

Answers (1)

 

Cyano bacteria / Blue green algae -

  • Gram negative, photosynthetic, prokaryotes.
  • Contain chlorophyll – a, carotene, phycobilin.
  • Cell membrane lacks sterol.
  • Reserve food material is cyanophycin protein, Cyanophycean starch, lipid globules.
  • Non flagellate, moment by gliding motion,
  • Some of them can fix atmospheric nitrogen in heterocysts.

Eg. Nostoc and anabaena,

- wherein

Eg. Trichodesmium erythreum, Nostoc commune.

 

 


Option 1)

Penicillium

this is the incorrect option

Option 2)

Agaricus

this is the incorrect option

Option 3)

Volvox

this is the incorrect option

Option 4)

Nostoc

this is the correct option

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