Microscope

Question 1

An optical instrument that can magnify organisms a hundredfold or even a thousand fold

Answer 1

Microscope

Question 2

In 1595, he invented the compound microscope

Answer 2

Hans Jansen

Question 3

In 1667, he designed a two-lens microscope

Answer 3

Robert Hooke

Question 4

In 1670, he developed the microscope with single lens

Answer 4

Anton von Leeuwenhoek

Question 5

In 1774, he constructed the set of color-corrected lenses

Answer 5

Benjamin Martin

Question 6

In 1830, he solved the spherical aberration problem of microscope

Answer 6

Jackson Lister

Question 7

In 1850, he produced a paper on dark-ground illumination

Answer 7

Francis Wenham

Question 8

In 1857, he improved the composite lens of microscope

Answer 8

Ernst Abbe

Question 9

In 1868, he developed the apochromatic system of lenses

Answer 9

Carl Zeiss

Question 10

In 1908, he developed the luminescence microscope

Answer 10

August Kohler

Question 11

In 1932, he invented the phase-contrast microscope

Answer 11

Fritz Zernike

Question 12

In 1969, he invented the confocal scanning optical microscope

Answer 12

Davidovits and Egger

Question 13

A type of microscope that contains more than one magnifying lens and can magnify objects approximately a thousand times their original size

Answer 13

Compound microscope

Question 14

The main source of illumination of the compound microscopes’ as such, it is also known as the compound light microscope

Answer 14

Visible light

Question 15

Contains ocular lens that has a magnifying power of 10×

Answer 15

Eyepiece

Question 16

Separates the eyepiece lens from the objective lens

Answer 16

Head/Body

Question 17

Holds the low-power and high-power objective lenses; allows the lenses to rotate for viewing

Answer 17

Nosepiece

Question 18

Objective lens that magnifies about 40×

Answer 18

High-power objective lens

Question 19

Objective lens that magnifies about 10×

Answer 19

Low-power objective lens

Question 20

Controls the amount of light passing through the opening of the stage

Answer 20

Diaphragm

Question 21

Moves the body tube for focusing with the low-power objective lens

Answer 21

Coarse adjustment knob

Question 22

Moves the body tube for focusing with the high-power objective lens

Answer 22

Fine adjustment knob

Question 23

Supports the body tube

Answer 23

Arms

Question 24

Supports the slide being used

Answer 24

Stage

Question 25

Holds the slide in place

Answer 25

Stage clip

Question 26

Supports the microscope

Answer 26

Base

Question 27

A type of microscope that is made up of a series of lenses and utilizing visible light as its main source of illumination; can magnify an object 1,000 to 1500 times

Answer 27

Brightfield microscope

Question 28

A microscope used to visualize bacteria and fungi

Answer 28

Brightfield microscope

Question 29

Objects less than or thinner than 0.2um cannot be visualized by this type of microscope

Answer 29

Brightfield microscope

Question 30

A microscope where the specimen appears dark against a surrounding brighter viewer field

Answer 30

Brightfield microscope

Question 31

A microscope that has a very low contrast and most of the cells needs to be stained to be properly viewed

Answer 31

Brightfield microscope

Question 32

This microscope utilizes reflected light instead of transmitted light, with a special condenser that has an opaque disc that blocks the light, such that only the specimen is illuminated

Answer 32

Darkfield microscope

Question 33

A microscope where the specimen to be studied appears bright against a dark background

Answer 33

Darkfield microscope

Question 34

This type of microscope is ideal for studying specimens that are unstained or transparent and absorb little no light

Answer 34

Darkfield microscope

Question 35

A microscope that is useful in examining the external details of the specimen such as its outline or surface

Answer 35

Darkfield microscope

Question 36

This type of microscope is used to view spirochetes

Answer 36

Darkfield microscope

Question 37

A microscope that is based on the principle that differences in refractive indices and light waves passing through transparent objects assume different phases

Answer 37

Phase-contrast microscope

Question 38

This type of microscopy was first introduced by Frits Zernike, a Dutch physicist in 1934

Answer 38

Phase-contrast microscope

Question 39

This microscope has a contrast-enhancing optical technique in order to produce high-contrast images of specimens that are transparent which include thin tissue slices, living cells in culture, and subcellular particles (such as nuclei and organelles)

Answer 39

Phase-contrast microscope

Question 40

This microscope is similar to phase-contrast microscope except that it utilizes two beams of light instead of one and therefore has higher resolution

Answer 40

Differential interference contrast microscope

Question 41

A microscope that was developed by Georges Nomarski in 1952 as an improvement to the phase-contrast microscope

Answer 41

Differential interference contrast microscope

Question 42

This type of microscope is useful in examining living specimens when biological processes might be inhibited by standard staining procedures

Answer 42

Differential interference contrast microscope

Question 43

This microscope makes use of ultraviolet light and fluorescent dyes called fluorochromes

Answer 43

Fluorescence microscope

Question 44

A type of microscope where specimen under study fluoresces or appears to shine against a dark background

Answer 44

Fluorescence microscope

Question 45

This microscope is based on the principle that certain materials emit energy that is detectable as visual light when they are irradiated with the light of a given wavelength

Answer 45

Fluorescence microscope

Question 46

This microscope uses a higher intensity of light source and this in turn excites a fluorescent species where they emit a lower energy light of a longer wavelength which produces the magnified image instead of the original light source

Answer 46

Fluorescence microscope

Question 47

This microscope is used to visualize structural components of small specimens such as cells and to detect the viability of cell population

Answer 47

Fluorescence microscope

Question 48

This microscope may also be used to visualize the genetic material of the cell (DNA and RNA)

Answer 48

Fluorescence microscope

Question 49

Also known as the confocal laser scanning microscope (CLSM) or laser confocal scanning microscope (LCSM). It uses an optical imaging technique technique that increases optical resolution and contrast of the micrograph by using a spatial pin-hole to block out-of-focus sight in image formation

Answer 49

Confocal microscope

Question 50

A type of microscope where specimen is stained with fluorescent dye to make it emit or return light. The object is scanned with a laser into planes and regions and is used together with computers to produce a three-dimensional image

Answer 50

Confocal microscope

Question 51

This microscope is useful in the study of cell physiology

Answer 51

Confocal microscope

Question 52

A microscope that utilizes a beam of electrons to create an image of specimen where electron beams serve as the source of illumination and magnets are used to focus the beam

Answer 52

Electron microscope

Question 53

This microscope is used to visualize viruses and subcellular structures of the cell

Answer 53

Electron microscope

Question 54

A type of electron microscope where it is its original form. It produces two-dimensional, black and white images, and magnifies objects up to 200,000 times

Answer 54

Transmission electron microscope (TEM)

Question 55

A type of electron microscope where it relies on interactions at the surface rather than transmission. It can magnify bulk samples with greater depth of view so that the image produced represents the 3-D structure of the samples, but image is still only black and white

Answer 55

Scanning electron microscope (SEM)

Question 56

A microscope that was developed in the 1980s by the Swiss scientists Dr. Ger Binnig and Dr. Heinrich Rohrer

Answer 56

Scanning probe microscope

Question 57

This type of microscope is used to study the molecular and atomic shapes of organisms on a nanoscale. It can also be used to determine the variations in temperature inside the cell as well as its chemical properties

Answer 57

Scanning probe microscope