MICROSCOPE

Question 1

branch of science that deals with the study of bacteria

Answer 1

bacteriology

Question 2

minute organisms which are too small to be seen with the naked eye

Answer 2

bacteria

Question 3

simplest type of compound microscope

Answer 3

brightfield compound microscope

Question 4

a specimen positioned properly on the stage of a microscope and illuminated by a light source will be magnified by a two-lens system

Answer 4

brightfield compound microscope

Question 5

refers to the fact that magnified objects appear as dark objects against a dark background

Answer 5

brightfield

Question 5

what is the importance of using immersion oil

Answer 5

to preserve the direction of light rays at the highest magnification

Question 6

T/F: oil immersion microscopy DECREASES the refractive index of the specimen

Answer 6

False: increase

Question 6

what are the structural components of the microscope

Answer 6

head/body
base
arm

Question 7

connects the base and supports the microscope head

Answer 7

arm

Question 8

housed the optical parts in the upper parts of the microscope

Answer 8

head/body

Question 8

supports the microscope and houses the illuminator

Answer 8

base

Question 8

what is the magnifying power of the eyepiece

Answer 8

10x

Question 9

remagnifies the image formed by the objective lens

Answer 9

eyepiece/ocular lens

Question 10

holds the eyepieces in place above the objective lens

Answer 10

eyepiece tube

Question 10

primary lenses that magnifies the microscope

Answer 10

objective lenses

Question 11

what are the objective lenses

Answer 11

scanner
lpo
hpo
oio

Question 11

magnifying power of scanner

Answer 11

4x

Question 12

magnifying power of lpo

Answer 12

10x

Question 12

a square platform with an opening at the center. it is where the specimen is placed during focusing

Answer 12

stage

Question 12

magnifying power of oio

Answer 12

100x

Question 12

what is the total magnification of the eyepiece and hpo

Answer 12

10x40 = 400x

Question 12

magnifying power of hpo

Answer 12

40x

Question 12

a rotating turret that houses the objectives

Answer 12

nose piece/revolving nose piece

Question 13

the light source for a microscope

Answer 13

illuminator

Question 13

paired structures found on either side of the stage. it is used to hold the slide in place

Answer 13

stage clips

Question 13

a bigger wheel used to adjust the LPO in focusing. it is also used for initial focusing of the specimen

Answer 13

coarse adjustment knob

Question 13

a smaller wheel used for delicate and final focusing of the specimen when using HPO and OIO. It is also used to make the specimen more vivid.

Answer 13

fine adjustment knob

Question 14

used to collect and focus the light from the illuminator on to the specimen

Answer 14

condenser

Question 15

controls the amount of light reaching the specimen

Answer 15

iris diaghragm

Question 16

moves the condenser up or down to control the lighting focus on the specimen

Answer 16

condenser focus knob

Question 17

if there is immersion oil in the lens wipe it with lens paper and what solution?

Answer 17

95% alcohol

Question 18

failure to clean the lens will result in the formation of

Answer 18

gummmy residue

Question 19

they can be intechanged without having to appreciably vary the focus

Answer 19

parfocal

Question 20

the ability to distinguish objects that are close together

Answer 20

resolving power or resolution

Question 20

the process of enlarging the size of an object, as an optical image

Answer 20

magnification

Question 20

it is the light intensity control on the side of the microscope

Answer 20

rheostat