Bc Science 8 Chapter 1

Front 1

arm

Back 1

supports the eyepiece

Front 2

base

Back 2

the bottom of a microscope

Front 3

coarse focus knob

Back 3

focuses on an object at low or medium power

Front 4

Compound Light Microscope

Back 4

a microscope with 2 lenses

Front 5

eyepiece

Back 5

a lens you look through

Front 6

fine focus knob

Back 6

focuses an object at high power

Front 7

field of view

Back 7

the area seen through the eyepiece of the microscope

Front 8

light source

Back 8

shines light through the object you view

Front 9

magnification power

Back 9

an object that seems larger than it is

Front 10

objective lenses

Back 10

what the different powers for magnifying are

Front 11

resolving power

Back 11

being able to determine two objects or details close together

Front 12

revolving nosepiece

Back 12

holds the objective lens

Front 13

stage

Back 13

a platform for the object you view

Front 14

wet mount slide

Back 14

a microscope slide made by mounting a specimen in a drop of water on the slide

Front 15

amoeba

Back 15

an example of a unicellular organisms made up of Eukaryotic cells.

Front 16

animal cell

Back 16

a cell found in animals; also a Eukaryotic cell

Front 17

bacterial cell

Back 17

an example of a prokaryotic cell

Front 18

bacteria

Back 18

various groups of single-celled micro-organisms

Front 19

Cell theory

Back 19

a cell is a basic unit of life;all organisms are composed of 1 or more cells; all cells come from living things

Front 20

cell membrane

Back 20

the structure that separates the interior of the cell from its surroundings

Front 21

chloroplast

Back 21

changes the trapped energy from the sun into chemical energy

Front 22

cytoplasm

Back 22

the jelly-like substance from within the cell

Front 23

cell wall

Back 23

a tough rigid structure surrounding the cell

Front 24

cell

Back 24

the basic unit of life

Front 25

concentration

Back 25

the amount of a substance in a given space

Front 26

cryostat

Back 26

used to cut a frozen specimen

Front 27

control

Back 27

a standard to which the results of an experiment are compared

Front 28

conclusion

Back 28

the explanation of the results of an experiment

Front 29

deoxyribonucleic acid

Back 29

the hereditary material that is passed down from generation to generation

Front 30

diffusion

Back 30

the movement of water through a selectively permeable membrane

Front 31

Electron Micrograph

Back 31

the picture that appears on the screen of a Scanning Electron Micrograph

Front 32

Eukaryotic

Back 32

cells whose organelles are surrounded by a membrane

Front 33

endoplasmic reticulum

Back 33

a network of membrane covered channels that look like the folds of a fan or accordian

Front 34

equilibrium

Back 34

equal number of particles on each side of the selectively permeable membrane

Front 35

Golgi body

Back 35

a structure in cells that stores proteins and packs them into vesicles

Front 36

Hypothesis

Back 36

a testable proposal used to explain an observation or to predict the outcome of an experiment

Front 37

lysosomes

Back 37

an organelle containing digestive chemicals that function to break down food particles, cell waste, and worn out cell-parts

Front 38

multicellular

Back 38

organisms made of many cells

Front 39

mitochondria

Back 39

the energy producers

Front 40

microtome

Back 40

something that automaticly cuts thin slices for viewing in a microscope

Front 41

manipulated variable

Back 41

a factor that is adjusted to see what effect it will have on the responding variable

Front 42

metabolism

Back 42

the total of all chemical reactions that take place in the cell

Front 43

nucleus

Back 43

the control center

Front 44

organism

Back 44

a living thing

Front 45

organelles

Back 45

a cell structure in which functions are carried out to ensure a cells survival

Front 46

osmosis

Back 46

diffusion of water through a selectively permeable membrane

Front 47

Prokaryotic

Back 47

cells whose organelles are not surrounded by a membrane

Front 48

proteins

Back 48

essential muscles used to build skin, hair, and nails

Front 49

photosynthesis

Back 49

a chemical reaction that takes place in plant cells when the carbon dioxide and water react in the presence of sunlight to produce glucose and oxygen

Front 50

prediction

Back 50

a forecast about what you expect to observe

Front 51

ribosomes

Back 51

a small factory that manufactures proteins

Front 52

responding variable

Back 52

the factor that changes

Front 53

selectively permeable membrane

Back 53

allows some to pass while keeping others out

Front 54

unicellular

Back 54

an organism made up of only one cell

Front 55

vacuole

Back 55

temporary storage compartments

Front 56

viruses

Back 56

tiny non-living particles that reproduce inside a host cell

Front 57

vesicles

Back 57

smaller than vacuoles and function like a mail system

Front 58

variables

Back 58

a factor that can influence the outcome of an experiment