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30 terms

Bio ch 06 sections 1, 2, 3

Intro to cells and cell membranes
STUDY
PLAY
Diffusion
Passive movement of a substance from where there is a lot, to where there's not much
Osmosis
diffusion of water
prokaryotic
a cell with no true nucleus
eukaryotic
a cell with a true nucleus
protein
part of the cell membrane that is used for facillitated diffusion
iso
_____ means "normal
hyper
this means above
hypo
this means below
wilting
if a plant cell shrivels it is called
crenation
if a red blood cell shrivels it is called
endocytosis
a way to bring materials into a cell
exocytosis
a way to move materials out of a cell
pinocytosis
a way to bring small drops of liquid into a cell
phagocytosis
a way to bring larger particles into a cell
DNA
important material found in the nucleus
plasma membrane
another name for the cell membrane
cell
the basic unit of life
pre-existing
all cells come from _-____ cells
organelle
each part of a cell that has a specific job is called (a/an) _____
membrane
the cell _____ controls what enters and leaves the cell
nucleus
DNA is found in the _____
cytoplasm
is found between the cell membrane and the nucleus
prokaryotic
oldest organisms in the fossil record include_____ cells
prokaryotic
_____ organisms include bacteria and domain archae.
phospholipid
the cell membrane is a _____ bilayer
passive
no energy needed for _____ transport
active
energy is needed for _____ transport
oxygen, water, and carbon dioxide
the three molecules that can diffuse through a cell membrane
gradient
if the concentrations of solutions are different on two sides of a membrane, you have a concentration _____
facillitated
_____ diffusion occurs through a chanel or tube in a protein