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1. Robert Hooke discovery
By Roshan

2. Content
• Who is Robert Hooke
• Plant cell
• Animal cell
• Revison

3. Who is Robert Hooke
• Robert Hooke FRS was an English polymath active as a scientist
and architect, who, using a microscope, was the first to visualize a
micro-organism.
• Born: 18 July 1635, Freshwater, United Kingdom
• Died: 3 March 1703, London, United Kingdom
• Nationality: English
• Parents: John Hooke, Cecily Gyles

4. Plant cell
• While observing cork through his microscope, Hooke saw tiny
boxlike cavities, which he illustrated and described as cells. He had
discovered plant cells! Hooke's discovery led to the
understanding of cells as the smallest units of life—the foundation
of cell theory.

5. Animal cells
• In the nineteenth century, biologists began taking a closer look at
both animal and plant tissues, perfecting cell theory. Scientists
could readily tell that plants were completely made up of cells due
to their cell wall. However, this was not so obvious for animal cells,
which lack a cell wall. Many scientists believed that animals were
made of “globules.”
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6. Revision
• Here is two video
• Who is Robert Hooke-
• What did he discover-