Microscopy

Question 1

Microscope Magnification

Answer 1

the number of time s the image of the specimen is made larger.

Question 2

field of view

Answer 2

maximum area you can see through the ocular lens

Question 3

specimen size

Answer 3

the actual size of the specimen being viewed

Question 4

drawing magnification

Answer 4

the number of times larger a drawing is drawn compared to specimen size

Question 5

resolution

Answer 5

point at which two objects can be distinguished separate

Question 6

compound microscope

Answer 6

light rays are passed through
internal structures
cells and organisms can be observed while still living

Question 7

dissecting microscope

Answer 7

light rays are bounced off a specimen
external structures
can be observed still living

Question 8

transmission electron microscope (TEM)

Answer 8

beams of electrons are passed through thin sections of a specimen
internal structures of very small organisms may be viewed
images are projected onto computer or television screen
max magnification: ~1000000
Limit of resolution : 0.0000007

Question 9

Scanning Electron Microscope (SEM)

Answer 9

Beams of electrons are bounced of specimens surface
external structures of very small organisms may be viewed
images are projected onto computer or television screen
max magnification: ~1000000
Limit of resolution : 0.0000007

Question 10

Base

Answer 10

Bottom of microscope

Supports the microscope

Question 11

arm

Answer 11

supports the body tube, objective lens and ocular lens as well

Question 12

body tube

Answer 12

Connects the ocular lens to the objective lenses

Question 13

coarse adjustment focusing knob

Answer 13

moves the stage closer and further from the lenses. general focus

Question 14

fine adjustment focusing knob

Answer 14

an adjustment that is used for higher level lens to fine focus the image. Detail focus

Question 15

low power objective lens

Answer 15

magnifies image 4X

Question 16

medium power objective lens

Answer 16

magnifies image 10X

Question 17

high power objective lens

Answer 17

magnifies image 40X

Question 18

oil immersion objective lens

Answer 18

magnifies image 100X

Question 19

ocular lens

Answer 19

lens at the top that you look through magnifies 10X

Question 20

stage

Answer 20

the platform where the slides are placed

Question 21

stage clips

Answer 21

holds the slides in place

Question 22

revolving Nosepiece

Answer 22

holds objective lenses in place and revolves them

Question 23

diaphragm

Answer 23

used to vary the intensity and the size of the cone of light that is projected upward into the slide

Question 24

lamp

Answer 24

light source

Question 25

condenser

Answer 25

focuses the light onto the specimen

Question 26

Atom

Answer 26

smallest part of an element | Iron, magnesium

Question 27

molecule

Answer 27

two or more atoms chemically combined | E.g. CO2, H2O

Question 28

organic compounds

Answer 28

contain both carbon and hydrogen atoms | E.g. (DNA)

Question 29

inorganic compound

Answer 29

lacks carbon and/or hydrogen atoms (CO2,H2O)

Question 30

organelle

Answer 30

small structure within cells | E.g. chloroplast, mitochondria, Golgi apparatus

Question 31

cell

Answer 31

basic unit of structure and functioning all living things | E.g. Fat cells cancer cells, skin cells

Question 32

tissue

Answer 32

a group of specialized cells that perform a shared function | E.g. muscle tissue, blood, xylem

Question 33

organ

Answer 33

a group of specialized tissues that work to perform a shared function

Question 34

organ system

Answer 34

a group of interdependent organs, each with a specific function, that work together to carry out a major body function. E.g. nervous reproductive, respiratory

Question 35

multicellular organisms

Answer 35

an independently functioning living thing, compromised of multiple organ systems

Question 36

population

Answer 36

a group of interacting and interbreeding organisms of one species.

Question 37

community

Answer 37

a group of interacting populations in a specific regions | E.g. Mission creek park includes all the populations of bears, Kokanee salmon, trees, insects, etc

Question 38

Ecosystem

Answer 38

the combination of all living and non living parts of the enviornment.

Question 39

biome

Answer 39

major geographic areas in which the climate determines which life forms are present

Question 40

biosphere

Answer 40

the entire world of living organisms