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 Multiple Choice QuestionsMultiple Choice Questions

81.

The phrase "Omnis cellula e cellula' was given by

  • Virchow

  • Pasteur

  • Schleiden

  • Brown


82.

Membrane is absent in

  • Nucleus

  • Nucleolus

  • Vacuole

  • Lysosome


83.

In prokaryotes, chromatophores are

  • Specialised granules responsible for the colouration of cells

  • Structures responsible for organising the shape of the organism

  • Inclusion bodies lying free inside the cells for carrying out various metabolic activities

  • Internal membrane systems that may become extensive and complex in photosynthetic bacteria


84.

Endoplasmic reticulum is in continuation with

  • Golgi body

  • nuclear wall

  • mitochondria

  • cell wall


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85.

The vacuole is lined by a membrane called

  • tonoplast

  • jacket

  • cell membrane

  • tonoplasm


86.

Cell theory was proposed by 

  • Virchow

  • Schleiden and Schwann

  • Robert Hooke

  • B McClintock


87.

Who for the first time developed electron microscope?

  • Knoll and Ruska

  • Rudolf and Kolliker

  • Robert Hooke

  • Swanson


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88.

During DNA replication in prokaryotes DNA is anchored to

  • chromosome

  • mesosome

  • nucleolus

  • ribosome


B.

mesosome

Mesosomes are the circular coiled bodies present on the plasma membrane of bacteria. These are prominent in Gram +ve bacteria. These also receive DNA during conjugation and DNA replication enzyme.


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89.

The mineral present in cell wall is

  • Na

  • Ca

  • K

  • Mg


90.

Which organelle is present in higher number in secretory cells?

  • Dictyosome

  • ER

  • Lysosome

  • Vacuole


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