Microscope

Question 1

a powerful tool that is commonly used in laboratories to observe biological structures and specimens that are too small to be seen with unaided eye.

Answer 1

Microscope

Question 2

three major parts of microscope

Answer 2

• optical parts
• illuminating parts
• mechanical parts

Question 3

two magnification lenses

Answer 3

the ocular lens
objective lens

Question 4

usually magnify 10x

Answer 4

ocular lens

Question 5

has three to four objective
lenses depending on the microscope used

Answer 5

objective lens

Question 6

The four objectives are:

Answer 6

-scanner (magnifies 4x)
-low power objective (magnifies 10x),
-high power objective (magnifies 40x), –oil immersion objective
(magnifies 100x)

Question 7

-a type of soft fine coarse paper that is used to clean and handle glass slides,
cover slips, and lenses without scratching or occurring damages to the glass wares.
-used to clean dirt, debris, and fingerprints

Answer 7

lens paper

Question 8

-are glassware where the specimens are put.
-They are used in the
laboratory to keep the specimen in place.
-They function as a barrier and shield to the specimen from
winds, debris, or any external factors.

Answer 8

Glass slide and the cover slip

Question 9

how to hold the microscope?

Answer 9

grab it by the neck and the bottom of the base

Question 10

The microscope should
be placed on a workbench at least…..

Answer 10

five (5) inches from the edge

Question 11

The microscope should be used in a way in which the ________ magnification lens is first
used up to the ________ magnification

Answer 11

-lowest
-highest

Question 12

is the first used lens in microscopy

Answer 12

scanner lens

Question 13

How to determine the total magnification?

Answer 13

multiply the magnification power
of the ocular lens and the objective lens used.

Question 14

The diameter of the field observed under the microscope

Answer 14

field of view or field
of vision (FOV)

Question 15

formula in measuring the size of FOV

Answer 15

(𝑭𝑶𝑽𝒍𝒐𝒘)(𝑴𝒂𝒈𝒍𝒐𝒘) = (𝑭𝑶𝑽𝒉𝒊𝒈𝒉)(𝑴𝒂𝒈𝒉𝒊𝒈𝒉)

Question 16

the diameter of FOV of the low power objective

Answer 16

FOV low

Question 17

the magnification of the low power objective

Answer 17

Maglow

Question 18

the diameter of FOV of the high power objective

Answer 18

FOVhigh

Question 19

the magnification of the high power objective

Answer 19

Maghigh

Question 20

formula in measuring the circular area of FOV

Answer 20

𝑨𝒓𝒆𝒂 𝒐𝒇 𝑭𝑶𝑽 = (𝝅)(𝒓𝒂𝒅𝒊𝒖𝒔𝟐)

Question 21

This tube holds the eyepiece in place.

Answer 21

Eyepiece
Tube

Question 22

Classification of Eyepiece
Tube

Answer 22

Mechanical

Question 23

Nosepiece holds the objective, often called a revolving turret.
You choose the objective lens by rotting to the specific lens
you want to use.

Answer 23

Nosepiece

Question 24

Classification of Nosepiece

Answer 24

Mechanical

Question 25

Scanning lens magnifies the specimen 4x. This lens is used mainly to initially identify part of the specimen you want to observe.

Answer 25

Scanning Objective

Question 26

Classification of Scanning Objective

Answer 26

Optical

Question 27

Low power objective magnifies the specimen 10x. This is used to zoom in the specimen especially to samples that are difficult to see without microscope.

Answer 27

Low Power Objective

Question 28

Classification of Low Power Objective

Answer 28

Optical

Question 29

High power objective magnifies the specimen 40x. This lens is used to show specific details of the specimen the researcher is observing.

Answer 29

High Power Objective

Question 30

Classification of High Power Objective

Answer 30

Optical

Question 31

the supports that holds the slides in place on the stage.

Answer 31

Stage Clips

Question 32

Classification of stage clips

Answer 32

Mechanical

Question 33

controls the amount of light passing through the slides.

Answer 33

Diaphragm

Question 34

Classification of Diaphragm

Answer 34

Illuminating

Question 35

project a parallel beam of light unto the sample for illumination.

Answer 35

Light source

Question 36

Classification of the light source

Answer 36

Illuminating

Question 37

used to look through the microscope. It magnifies the image of the specimen.

Answer 37

Eyepiece

Question 38

Classification of the eyepiece

Answer 38

Optical

Question 39

Nosepiece often called a ____________.

Answer 39

Revolving turret

Question 40

connects the base to the nosepiece and eyepiece. It is also used to carry the microscope.

Answer 40

Arm

Question 41

Classification of the arm in microscope

Answer 41

Mechanical

Question 42

This section in which the specimen is placed for drawing.

Answer 42

Stage

Question 43

Classification of stage

Answer 43

Mechanical

Question 44

moves the stage up and down to provide general focus on the specimen.

Answer 44

Coarse Focus

Question 45

Classification of coarse focus

Answer 45

Mechanical

Question 46

moves the stage in smaller increments to provide a clear view of the specimen.

Answer 46

Fine Focus

Question 47

Classification of fine focus

Answer 47

Mechanical

Question 48

the main support of the microscope.

Answer 48

Base

Question 49

Classification of base

Answer 49

Mechanical

Question 50

Normal letter "e"

Answer 50

seen by the naked eye.

Question 51

upside down letter "e"

Answer 51

seen under the microscope

Question 52

A slide that is moved left while looking through the microscope, it will appear to move _________.

Answer 52

Right

Question 53

the slide when moved down, it will seem to _________.

Answer 53

Move up

Question 54

an ocular lens has ____ magnifying power.

Answer 54

10x

Question 55

What does parfocal mean?

Answer 55

refers to objectives that can be changed with minimal or no refocusing.

Question 56

when should the high objective power be used?

Answer 56

ideal for observing fine details within a specimen sample.

Question 57

when should the low power objective be used?

Answer 57

cover a wide field of view and they are useful for examining large specimens or surveying many smaller specimens.