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CBSE

Subject

Biology
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NEET Biology : Cell : The Unit of Life

Multiple Choice Questions

81.

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



82.

Endoplasmic reticulum is in continuation with

  • Golgi body

  • nuclear wall

  • mitochondria

  • cell wall



83.

During DNA replication in prokaryotes DNA is anchored to

  • chromosome

  • mesosome

  • nucleolus

  • ribosome



84.

Who for the first time developed electron microscope?

  • Knoll and Ruska

  • Rudolf and Kolliker

  • Robert Hooke

  • Swanson



85.

Membrane is absent in

  • Nucleus

  • Nucleolus

  • Vacuole

  • Lysosome



86.

The vacuole is lined by a membrane called

  • tonoplast

  • jacket

  • cell membrane

  • tonoplasm



87.

Cell theory was proposed by 

  • Virchow

  • Schleiden and Schwann

  • Robert Hooke

  • B McClintock



88.

The phrase "Omnis cellula e cellula' was given by

  • Virchow

  • Pasteur

  • Schleiden

  • Brown



89.

Which organelle is present in higher number in secretory cells?

  • Dictyosome

  • ER

  • Lysosome

  • Vacuole



90.

The mineral present in cell wall is

  • Na

  • Ca

  • K

  • Mg



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