Microsopes Flashcards

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1
Q

What are the advantages of a light microscope? 3

A

Inexpensive, smaller, can use living organisms.

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2
Q

Disadvantage of light microscopes? 3

A

The specimen has to be thin, lower resolution, can’t see internal structures.

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3
Q

Advantages of electron microscopes? 2

A

Higher resolution/ magnification

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4
Q

Disadvantage of electron microscopes? 3

A

Expensive, not portable, can only use dead specimens.

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5
Q

Define resolution

A

The ability to distinguish between to separate points

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6
Q

How does the electron microscopes have a higher resolution?

A

Electrons are fired through the spectate points to a screen and electrons are smaller then light waves so it shows a detailed image.

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7
Q

Define magnification

A

How bigger a microscope causes an object to appear.

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8
Q

What can u use laser scanning for?

A

Human tissue, thicker sample.

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9
Q

What are the two electron microscopes?

A

TEM and SEM

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10
Q

Which one of SEM And TEM has a higher resolution? And up to what amount?

A

TEM. X2miliion magnification

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11
Q

What the eq to use when calibrating the microscope

A

Units on the micrometer
Units x —————————————
Units on the eye piece graticule

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