CBSE  /  Class 9  /  Science  /  The Fundamental Unit of Life

  • 1. 
    Cell arises from pre-existing cell was stated by

  • Haeckel
  • Virchow
  • Hooke
  • Schleiden

  • 2. 
    Cell theory was given by

  • Schleiden and Schwann
  • Virchow
  • Hooke
  • Haeckel

  • 3. 
    The only cell organelle seen in prokaryotic cell is

  • mitochondria
  • ribosomes
  • plastids
  • lysosomes

  • 4. 
    Organelle without a cell membrane is

  • ribosome
  • golgi apparatus
  • chioroplast
  • nucleus

  • 5. 
    1 μm is

  • 10 m
  • 10 m
  • 10 m
  • 10 m

  • 6. 
    Lysosome arises from

  • endoplasmic reticulum
  • golgi apparatus
  • nucleus
  • mitochondria

  • 7. 
    Living cells were discovered by

  • Robert Hooke
  • Purkinje
  • Leeuwenhoek
  • Robert Brown

  • 8. 
    Select the odd one out.

  • The movement of water across a semi permeable membrane is affected by the amount of substances dissolved in it.
  • Membranes are made of organic molecules like proteins and lipids.
  • Molecules soluble in organic solvents can easily pass through the membrane.
  • Plasma membranes contain chitin sugar in plants.
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