Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

GEN BIO > Microscope > Flashcards

Microscope Flashcards

You may prefer our related Brainscape-certified flashcards:
Biology 101 flashcards
1
Q

Use to magnify the specimen w/ magnification of 10x

A

Eyepiece/Ocular lenses

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

It connects the eyepiece and the head of a microscope. Holds the eyepiece in place.

A

Eyepiece tube

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

It is attached to the nosepiece of the microscope, and w/ the magnification varying from 4x, 10x, 40x, 100x.

A

Objective lenses

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

A structural part where it is use to carry the microscope. It connects the base to the nosepiece and the eyepiece of the microscopes.

A

Arm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

It holds the objective lenses in place, also it helps the objective lenses to rotate for you to choose which magnification level you want to use.

A

Nosepiece

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

It holds the slide to prevent it from moving.

A

Clip holder/ Stage clips

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

It is where the specimen is placed for observation. And also it has a hole in the middle, where the light to pass through the slide.

A

Stage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Used to view the initial focus of the specimen, used w/ low power objective.

A

Coarse adjustment screw

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Used to view the final and clear focus of the specimen, used w/ high power objective.

A

Fine adjustment screw

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

A whole in the stage where light can pass through.

A

Aperture

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

The light source of the microscope. It reflect light from an external source up through the bottom of the stage.

A

Mirror/Illuminator

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Supports the microscope and it’s where illuminator is located.

A

Base

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Gathers and focuses light from the illuminator onto the specimen being viewed.

A

Condenser

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Adjusts the amount of light that reaches the specimen.

A

Diaphragm/ Iris

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

These knobs move the stage left and right or up and down.

A

Stage control

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Useful as a means to change focus on one eyepiece so as to correct for any difference in vision between your two eyes.

A

Diopter adjustment

17
Q

The ‘‘father of microscopes’’ Dutchman, early 1670s

A

Anton van Leeuwenhoek

18
Q

Who (Dutch) experimented w/ a crude concept of microscope with magnification level of 10x to 30x or so, 1590.

A

Zaccharias Janssen and his son Hans

19
Q

Who (Italian) improved the principle of lenses and added a focusing device to improve somewhat upon what the Janssen’s had done.

A

Galileo

20
Q

Who was the first person to see and describe the bacteria, yeast, plants, and life in a drop of water with the magnification of up to 270x, 1674.

A

Anton van Leeuwenhoek

21
Q

High power microscopes

A

compound

22
Q

Low power microscopes

A

Stereo or dissecting

23
Q

High power microscopes can have a magnification level of?

A

40x to 1000x and some can go up to 1500x or 2000x.

24
Q

It is the most used light method. Light is projected from below to pass through the specimen.

A

Trans illumination

25
Q

Have a single light path that produce 2-D image of the specimen

A

Compound Microscopes

26
Q

There a two separate light paths that produce 3-D image of the specimen.

A

Stereo microscopes

27
Q

Uses the differences in the phases of light transmitted or reflected by a specimen to form distinct contrasting images of different parts of the specimen. Transparent and colourless images.

A

Phase Contrast

28
Q

The object viewed is illuminated by polarized light for typically analyzing the content and make-up of organic and inorganic material.

A

Polarizing

29
Q

Combination of a microscope and digital camera. Have high power level.

A

Digital

30
Q

New technology for a miniature and illuminator in one unit. Low power level.

A

Handheld digital Microscopes

31
Q

Uses a beam of accelerated electrons as a source of illumination. It has a high resolution of images of biological and non-biological specimens.

A

Electron Microscopes

32
Q

Used to view thin specimens which electrons can pass through a projection image used to image the interior of a cell.

A

Transmission electron microscope (TEM)

33
Q

Depends on the emission of secondary electrons from the surface of a specimen. Provide detailed images of the surface of the cell. Also used in particle counting, and size determination.

A

Scanning electron microscope (SEM)

34
Q

The number of times the image is larger than the object would appear to the naked eye.

A

Magnification (power)

35
Q

allows for brighter, sharper images combined with a wide field of view.

A

Low powers

36
Q

Often for examining slide specimens, present larger but dimmer images with a narrower field of view.

A

Higher powers

37
Q

When the magnification is increased but the detail is not (due to the limitation of the resolution), it is called?

A

Empty magnification

38
Q

A condition in which all optical elements are centered on the same axis.

A

Collimation (Alignment)

GEN BIO (8 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions