class notes 2-4-15

Question 1

what is the ability of a lens system to distinguish objects as separate entities that are very small and very close together.

Answer 1

resolution

Question 2

what is determined by the quality of the lens and the wavelength of light used

Answer 2

resolution

Question 3

what is the ability of making a small object appear larger

Answer 3

magnification

Question 4

what is described as, when magnification increases the focal point remains the same as

Answer 4

Parfocal lens

Question 5

what is described as, when focusing up and down as magnification increases the depth of field decreases ( seeing all 3 layers at once)

Answer 5

Depth of field

Question 6

what is described as, when magnification increases the center of the field of view remains the same

Answer 6

Parcentral

Question 7

what are the 3 properties of microscopy

Answer 7

magnification
contrast
resolving power

Question 8

what is the degree to which an image stands out against its background?

Answer 8

contrast

Question 9

what is the amount that the image of an object is enlarged?

Answer 9

magnification

Question 10

what color are bacteria?

Answer 10

colorless

Question 11

the ability of a lens to separate between small objects that are close together

Answer 11

resolving power

Question 12

when things are not resolved this is known as

Answer 12

empty magnification

Question 13

when looking through the oculars, the area of the slide that can be observed is known as

Answer 13

the field of view

Question 14

when changing from one objective to another, the specimen will remain very nearly in focus, is known as

Answer 14

Parfocal

Question 15

when changing objectives the specimen will stay in the center of the field of view ( when focused properly) is known as

Answer 15

Parcentral

Question 16

what part of the microscope directs and concentrates the light

Answer 16

condenser lenses

Question 17

to be able to see objects through a microscope, what must be either reflected from the object or transmitted through the object

Answer 17

light

Question 18

what type of light is used during most of your observations with the microscope

Answer 18

transmitted light

Question 19

name the 4 properties of light

Answer 19

reflection
refraction
transmission
absorption

Question 20

when light bounces back from the object, the particular wavelengths reflected back to the eye determine the perceived color is known as what property of light

Answer 20

reflection

Question 21

what property of light refers to the passage of light through the object

Answer 21

transmission

Question 22

what is the pathway of light?

Answer 22

light source
condenser lens
through the specimen
objective lens 
ocular lens

Question 23

if light rays don’t pass through or bounce off the object but are taken up by the objects.

Answer 23

absorption

Question 24

the absorbed light rays are reemitted as longer wavelengths is a phenomenon known as

Answer 24

fluorescence

Question 25

the bending of light as it passes from one medium to another of a different density

Answer 25

refraction

Question 26

name the 2 types of microscopes

Answer 26

light microscope

electron microscope

Question 27

name the 2 types of light microscopes

Answer 27

stereo dissecting light

compound light

Question 28

name the 2 types of electron microscopes

Answer 28

scanning electron microscope

transmission electron microscope

Question 29

which of the light microscopes has 3D view and can view larger specimens

Answer 29

stereo dissecting light

Question 30

which of the light microscopes has a 2D view and can view smaller specimens in thin sections

Answer 30

compound light microscope

Question 31

which of the electron microscopes has a 3D view of the external surfaces of the specimen

Answer 31

scanning electron microscope

Question 32

which of the electron microscopes has a 2D view of the internal structures of the specimen

Answer 32

transmission electron microscope

Question 33

what is the maximum magnification of a light microscope

Answer 33

2,000x

Question 34

what is the maximum magnification of an electron microscope

Answer 34

100,000-1,000,000

Question 35

what type of specimens are viewed with a light microscope ( alive or dead)

Answer 35

both may be viewed

Question 36

what type of specimens are viewed with an electron microscope ( alive or dead)

Answer 36

non living

Question 37

which of the 2 types of microscopes can the specimens be viewed in color

Answer 37

light microscope

Question 38

what is obtained when you multiply the power of the ocular times the power of the objective?

Answer 38

total magnification