THE CELL
CELL THEORY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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by allowing scientists to see cells.
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by exposing the detail of cell surfaces
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by making it possible to view the inner parts of cells
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allowing scientists to view cells in many different samples with very little detail.
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Detailed explanation-1: -Janssen was the son of a spectacle maker named Hans Janssen, in Middleburg, Holland, and while Zacharias is credited with inventing the compound microscope, most historians surmise that his father must have played a vital role, since Zacharias was still in his teens in the 1590s.
Detailed explanation-2: -1590 – Early microscope Zacharias Janssen and his son Hans place multiple lenses in a tube. They observe that viewed objects in front of the tube appear greatly enlarged. This is a forerunner of the compound microscope and the telescope.
Detailed explanation-3: -Microscopes became more stable and smaller. Lens improvements solved many of the optical problems that were common in earlier versions. The history of the microscope widens and expands from this point with people from around the world working on similar upgrades and lens technology at the same time.
Detailed explanation-4: -Galileo Galilei soon improved upon the compound microscope design in 1609. Galileo called his device an occhiolino, or “little eye.” English scientist Robert Hooke improved the microscope, too, and explored the structure of snowflakes, fleas, lice and plants.