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12 Cards in this Set
- Front
- Back
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Microscope |
These are instruments that can magnify the size of a small object. |
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Bright Field Microscopy |
A condition wherein visible light passes through the small or thin specimen to be observed through the glass lenses of microscope. |
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Zacharias Janssen |
He was a Dutch scientist who first invented the microscope in 1590, but was surpassed by his fellow countryman, Anton van Leeuwenhoek. |
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Anton van Leeuwemhoek |
He was a dry goods dealer who made lenses as a hobby and became interested in tiny living organisms coming to examine them with his lenses. Through this, he was able to make an efficient and better versiom of the microscope. |
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Electron Microscope |
It is a type of microscope that uses a beam of electrons instead of light and electromagnets instead of glass lenses. |
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Transission Electron Microscope |
An electron microscope which is mainly used to study the internal structures of cells. |
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Scanning Electron Microscope |
An electron microscope that offers the distinct advantage of a three-dimensional view up to 100,000x. With it, detailed studies of the surface of biological structures os made possible. |
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Robert Hooke |
He was the first person to coin the term "cell" in 1665 as he observed peice of cork with the use of a microscope and discovered boxlike compartments that looked like rooms. |
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Robert Brown |
He reported seeing small bodies inside cells in 1831 and called them nuclei or nucleus. |
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Johannes Purkinje |
He observed and studied the complex fluid inside the cells and named them Protoplasm. |
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Matthias J. Schleiden and Theodor Schwann |
A biologist and zoologist duo who proposed the Cell Theory in the late 1830s, proposing that all organisms are made up of fundamental units called cells. Cells are not only units of structure but also units of function and means that individual cells have specific roles in organisms. |
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Rudolf Virchow |
A German physician who discovered that cells increased in number by dividing and formed new cells in 1855. Thus, the cell theory also states that mew cells arise from existing cells. |
