Biology Chapter 6 Vocabulary

Front 1

the generaliation that all living things are made up of cells, cells are the basic structure and function in living things, and all cells come from preexisting cells

Back 1

the cell theory

Front 2

a photograph of the view through a microscope

Back 2

micrograph

Front 3

a part of the cell with a specific job to do

Back 3

organelle

Front 4

thin outer boundary of a cell that regulates the traffic of chemicals between the cell and its surroundings

Back 4

plasma membrane

Front 5

in a cell the part that houses the cell's genetic material

Back 5

nucleus

Front 6

region of a cell between the nucleus and the plasma membrane

Back 6

cytoplasm

Front 7

cell with a nucleus

Back 7

eukaryotic cell

Front 8

cell lacking a nucleus and most other organelles

Back 8

prokaryoctic cell

Front 9

two layer sandwhich of molecules that surrounds a cell

Back 9

phospholipid bilayer

Front 10

the movements of particles of a substance from where they are more concentrated to where they are less concentrated

Back 10

diffusion

Front 11

point at which the number of difusing moleculesmoving in one directonis equal to the number moving in another directon

Back 11

equilibrium

Front 12

membrane taht allows some substances to pass more easily than others and blocks the passage if some substances all together

Back 12

selectivly permeable barrier

Front 13

diffusion across amembrane requiring only the random motion of molecules with no energy expended by the cell

Back 13

passive transport

Front 14

pathway provided by transport proteins that helps certain molecules pass throgh a membrane

Back 14

faciliated diffusion

Front 15

passive transport of water through a selectivly permeable barrier

Back 15

osmosis

Front 16

having a higher concentration of solute than another solution

Back 16

hypertonic

Front 17

having a lowerconcentration of solute thatn another solution

Back 17

hypotonic

Front 18

having a solute concentration equal to that of another solution

Back 18

isontonic

Front 19

movement of molecules across a membrane requiring energy to be expended by the cell

Back 19

active transport

Front 20

small membrane boun sac that functions in moving products into, out of, and within a cell

Back 20

vesicle

Front 21

process of taking material into a cell with in vesicles that bud inward from the plasma membrane

Back 21

endocytosis

Front 22

process of exproting proteins from a cell by a vesicle fusing with the plama membrane

Back 22

exocytosis