UTK BIOL 220 - Exam 1 questions with answers

UTK BIOL 220 - Exam 1 questions with
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answers

Smallest Distance by which two objects can be separated
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and still be distinguished - CORRECT ANSWERS
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✔✔Resolution


In human eye, finest resolution of two separate points is
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perceived by the.... - CORRECT ANSWERS ✔✔Fovea
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Size of Eukaryotic microbes - CORRECT ANSWERS ✔✔10-
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100 um |\




Structure of Eukaryotes can be seen under... - CORRECT
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ANSWERS ✔✔Light Microscope |\ |\




Size of Prokaryotic microbes - CORRECT ANSWERS ✔✔0.4-
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10 um |\




Sub-cellular structures of prokaryotes can/can't be seen
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by light microscopy? - CORRECT ANSWERS ✔✔Can't
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Bacilli shape? |\

,Spirochetes shape? |\




Cocci shape? |\




Spirilla shape? - CORRECT ANSWERS ✔✔Bacilli = Rods
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Cocci = Spheres|\ |\




Spirochetes = Spiral Form |\ |\ |\ |\




Spirilla = Spiral Form |\ |\ |\




Wavelength of visible light - CORRECT ANSWERS ✔✔400- |\ |\ |\ |\ |\ |\ |\



750 nm |\




Conditions for electromagnetic radiation to resolve an |\ |\ |\ |\ |\ |\ |\



object? - CORRECT ANSWERS ✔✔1. Contrast between
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object and medium |\ |\




2. Wavelength smaller than object
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3. Magnification
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When photon's energy is acquired by the absorbing
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object - CORRECT ANSWERS ✔✔Absorption
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When the wavefront bounces off the surface of an object -
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CORRECT ANSWERS ✔✔Reflection
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The bending of light as it enters a substance that slows its
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speed - CORRECT ANSWERS ✔✔Refraction
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, Occurs when the wavefront interacts with an object
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smaller than the wavelength of light - CORRECT
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ANSWERS ✔✔Scattering |\




Requires the bending of light rays, as in refraction -
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CORRECT ANSWERS ✔✔Magnification|\ |\




Wavefronts of light shift direction as they enter a
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substance of __________ - CORRECT ANSWERS ✔✔Higher
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refraction index |\




A parabolic curvature bends light rays_________ -
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CORRECT ANSWERS ✔✔To intersect at a focal point
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The point at which rays or waves meet after reflection or
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refraction - CORRECT ANSWERS ✔✔Focal Point
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Magnification without increasing detail - CORRECT |\ |\ |\ |\ |\ |\



ANSWERS ✔✔Empty Magnification |\ |\




A system of multiple lenses designed to correct or
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compensate for aberration. |\ |\ |\