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SCIENCE EC > MICROSCOPES > Flashcards

MICROSCOPES Flashcards

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Biology 101 flashcards
1
Q

A laboratory instrument used ro examine cery smallor micro-objects sich as cells and microorganisms m that are not able to be seen by the naked eye?

A

Microscope

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2
Q

On the upper side of the microscope and carries the optical lens

A

Head

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3
Q

Overall suppoet of the microscope and carries microscope illuminators, brightness adjustment switch, and a light switch

A

Base

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4
Q

Supporting element that connects ghe base and headnof the microscope

A

Arm

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5
Q

Also called the ocular lens. This is to see the specimen and it is at the top of the microscope

A

Eyepiece

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6
Q

How do you calculate the total magnification?

A

The objective x the eyepiece

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7
Q

What are the different scanning objectives?

A

Scanning objective, low power objective, high power objective

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8
Q

Holder of the eyepiece. Connects the euepiece and ocular lenses to the objective lenses.

A

Eyepiece tube

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9
Q

Most important part of the microscope. It is to visualize the specimen

A

Objective lens

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10
Q

How many types of objective lenses?

A

3-4
Scanning objective-4x
LPO- 10x
HPO- 40x
oil immersion objective- 100x

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11
Q

Also called the revolving turret. To hold different types of objective lenses.

A

Revolving Nose piece

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12
Q

Adjust the focus of the microscope

A

Coarse and fine adjustment knobs

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13
Q

What is coarse adjustment knob?

A

To bring the specimen into approximate or near focus

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14
Q

What is fine adjustment knob?

A

Sharpen the focus quality of the image after the coarse adjustment knob

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15
Q

Where the specimen is placed and used for viewing

A

Stage

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16
Q

Also called the iris. It is found below the the stage of the microscope and controls the amount of light and intensity of light that falls on the specimen

A

Diaphragm

17
Q

The circular opening or hole in the middle portion of the stage. It is to transmit the light from the source of light or microscopic illuminator to the stage of the microscope.

A

Aperture

SCIENCE EC (1 decks)

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