Microscopes Flashcards

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1
Q

what is a light microscope also called

A

compound microscope

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2
Q

what does the condenser do

A

focus light

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3
Q

what does the eyepiece and objective do

A

collect and magnify light

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4
Q

what is spherical aberration

A

rays are bent so rays focus in different points- issues with focusing

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5
Q

what is chromatic aberration

A

wavelegths are bent different- issues with colour

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6
Q

what is resolution

A

distance between 2 points you see completely- better resolution- better picture

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7
Q

what are staining techniques

A

allows cells and cell components to be visualised- haemotoxylin, eosin, antibodies can target one part of the body e.g insulin

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8
Q

what passes in light microscopes

A

1 visible light

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9
Q

what passes in fluorescent microscopy

A

only 1 colour

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10
Q

what is a transmission electron microscope

A

uses streams of electrons (photons) and they carry charge. Uses magnets as lenses

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11
Q

what is scanning electron microscopy

A

beam of electrons is focused on a sample and scattered electrons are collected by a detector and a beam deflector gives a 3D effect

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12
Q

what are the 2 types of microscopy

A

light and electron

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