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Microscop | MICB - Microbiology, Quizzes of Microbiology

Class: MICB - Microbiology; Subject: Microbiology; University: Delgado Community College; Term: Forever 1989;

Typology: Quizzes

2012/2013

Uploaded on 09/28/2013

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TERM 1
light microscope
DEFINITION 1
The optical microscope, often referred to as the "light
microscope", is a type of microscope which uses visible light
and a system of lenses to magnify images of small samples.
TERM 2
dark-field microscopy
DEFINITION 2
Dark field microscopy describes microscopy methods, in both
light and electron microscopy, which exclude the unscattered
beam from the image.
TERM 3
Phase contrast microscopy
DEFINITION 3
Phase contrast microscopy is an optical microscopy
technique that converts phase shifts in light passing through
a transparent specimen to brightness changes in the image.
TERM 4
fluorescence microscopy
DEFINITION 4
A fluorescence microscope is an optical microscope that uses
fluorescence and phosphorescence instead of, or in addition
to, reflection and absorption to study properties of organic or
inorganic substances.
TERM 5
bright-field microscopy
DEFINITION 5
Bright field microscopy is the simplest of all the optical
microscopy illumination techniques. Sample illumination is
transmitted white light and contrast in the sample is caused
by absorbance of some of the transmitted light in dense
areas of the sample.
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TERM 1

light microscope

DEFINITION 1 The optical microscope, often referred to as the "light microscope", is a type of microscope which uses visible light and a system of lenses to magnify images of small samples. TERM 2

dark-field microscopy

DEFINITION 2 Dark field microscopy describes microscopy methods, in both light and electron microscopy, which exclude the unscattered beam from the image. TERM 3

Phase contrast microscopy

DEFINITION 3 Phase contrast microscopy is an optical microscopy technique that converts phase shifts in light passing through a transparent specimen to brightness changes in the image. TERM 4

fluorescence microscopy

DEFINITION 4 A fluorescence microscope is an optical microscope that uses fluorescence and phosphorescence instead of, or in addition to, reflection and absorption to study properties of organic or inorganic substances. TERM 5

bright-field microscopy

DEFINITION 5 Bright field microscopy is the simplest of all the optical microscopy illumination techniques. Sample illumination is transmitted white light and contrast in the sample is caused by absorbance of some of the transmitted light in dense areas of the sample.

TERM 6

objective lenses

DEFINITION 6 In an optical instrument, the objective is the optical element that gathers light from the object being observed and focuses the light rays to produce a real image. TERM 7

iris diaphragm

DEFINITION 7 In optics, a diaphragm is a thin opaque structure with an opening at its center. The role of the diaphragm is to stop the passage of light, except for the light passing through the aperture. TERM 8

condenser

DEFINITION 8 A condenser is one of the main components of the optical system of many transmitted light compound microscopes. TERM 9

lamp

DEFINITION 9 A lamp is a replaceable component such as an incandescent light bulb, which is designed to produce light from electricity.