Microscope Flashcards

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1
Q

What are parts of the microscope?

A

Tube, Revolving nose piece, objective lenses, stage, stage clips, diaphragm, condenser lens, lamp, base, fine adjustment knob, corse adjustment knob, arm, eyepiece.

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2
Q

Whats the eye piece

A

Eyepiece or ocular lens This is the lens that
magnifies the specimen, usually by 10 times (10x).

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3
Q

Whats the Revolving nosepiece

A

Where the objective lenses are mounted. Rotate the lens to select low-, medium-, or high-power lenses.

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4
Q

Whats the Corse adjustment Knob

A

This knob moves the stage up or down to focus on the specimen. This is the first knob you use to focus on a specimen.

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5
Q

Whats the Fine adjustment Knob

A

Use this lens to sharpen an
image under low and medium power. It is the only adjustment knob needed with the high-power lens.

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6
Q

What are the objective lenses

A

There are three lenses that magnify the specimen: low-power (4x), medium power (10x) and high-power (40x). Keep the lenses free of dirt and fingerprints.

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7
Q

What is the stage

A

This is where you place a slide for
observation. Always keep the stage dry

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8
Q

What are the stage clips

A

These are used to hold a slide in
position on the stage.

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9
Q

What is the diaphragm

A

This has different-sized holes that let
different amounts of light pass through the
specimen on the stage

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10
Q

What is the lamp

A

The lamp supplies light that is shined on the stage, helps you see better.

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11
Q

What is the arm

A

It helps hold the tube in place, its usually where you carry the microscope.

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12
Q

What is the base and tube

A

The base hold the microscope up and supports it, the tube is a proper distance always from the eyepiece so it can be magnified properly.

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13
Q

What is the condenser lens

A

This lens is under the stage. It helps
focus light onto the specimen on top of the stage.

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14
Q

What is a compound light microscope

A

A microscope that creates a magnified image of a specimen by focusing light through a variety of lenses.

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15
Q

Whats permeable.

A

Something that can be easily passed through (cotton)

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16
Q

What is impermeable?

A

Something that cannot be easily passed through (plastic)

17
Q

Whats selectively permeable

A

Something that only allows certain things to pass through (cell membrane)