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Cards In This Set
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The metric system of measurement is based on powers of
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10
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One meter is equal to
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1000mm, 0.001km, 100cm
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The image produced by a microscope is called
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A micrograph
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Fuzzy images viewed with a microscope may be due to poor
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Resolution
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A microscope with a 4x objective lens and a 10x ocular lens produces a total magnification of
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40x
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The most powerful light microscope can magnify an object about
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2000x
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Living specimens can be viewed using a(n)
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Electron microscope and a scanning tunneling microscope
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The smallest units of life are
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Cells
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When the volume of a cell increases, its surface area
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Increases at a slower rate
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Surface area is an important factor in limiting cell growth because
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The cel may become too large to take in enough food and to remove enough wastes
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The size to which a cell can grow is limited by its
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Surface area
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As a cell increases, the surface-area-to-volume ratio
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Decreases
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To function most efficiently, a cell must be
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Small
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One difference between prokaryotes and eukaryotes is that
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Prokaryotes do not have a nucleus
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Which of the following is characteristic of prokaryotes?
-they have a nucleus
-their evolution preceded that of eukaryotes
-the organelles in their cytoplasm are surrounded by membranes
-none of the above
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Their evolution preceded that of eukaryotes
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