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The Fundamental Unit of Life — Science STD 9 — Question

CBSE BoardEnglish MediumSTD 9ScienceThe Fundamental Unit of Life1 Mark
MCQ
Robert Hooke actually observed ________ of cells.
  • A
    Cell walls.
  • B
    Protoplasts.
  • C
    Wall-less cells.
  • D
    Walled cells.
✓

Answer

  1. Cell walls.

Explanation:

Robert Hook discovered cells in 1655 with the help of compound microscope. He was observing insects, sand, bird feathers, fossils and plants. Once he was observing a thin slice of cork under the microscope he found a framework similar to honeycomb-like structure. He named those structures as cells but those were actually non living cell walls.

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