8 Questions
What is the cell theory?
The cell theory is a scientific theory that states that all living organisms are composed of cells, cells are the basic units of structure and function in living organisms, and all cells come from pre-existing cells.
Why were early glass lenses not powerful enough to reveal individual cells?
Early glass lenses were not powerful enough to reveal individual cells because they did not provide enough magnification.
What is the total magnification of a compound microscope?
The total magnification of a compound microscope is the product of the magnifying power of each individual lens.
Who is credited with the invention of the compound microscope?
Zacharias Janssen, a Dutch eyeglass maker, is usually credited with the invention of the compound microscope.
What did Robert Hooke observe when he examined thin slices of cork?
Robert Hooke observed that cork is made of tiny, hollow compartments.
How does the magnifying power of a compound microscope compare to that of a single lens?
The magnifying power of a compound microscope is generally much more powerful than that of a single lens.
Why did Robert Hooke name these compartments 'cells'?
Robert Hooke named these compartments 'cells' because they reminded him of small rooms found in a monastery.
Were the plant cells that Robert Hooke observed alive or dead?
The plant cells that Robert Hooke observed were dead.
Test your knowledge on the history of cell theory and the invention of the compound microscope in this quiz. Explore the early studies that led to the development of cell theory and learn about the importance of microscopes in observing cells.
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