Please enable JavaScript.
Coggle requires JavaScript to display documents.
MOVEMENT INTO AND OUT OF CELLS - Coggle Diagram
MOVEMENT INTO AND OUT OF CELLS
depends on
concentration gradient
occurs through
cell membrane
is
partially permeable
controls
movement of substances in and out of the cell
made of
phospholipid bilayer
consists of
two layers of phospholipids
arranged with
hydrophilic heads
acts as
a barrier between the cell and its surroundings
contains
protein channels and carrier proteins
allows
diffusion of small, non-polar molecules
proteins
includes
diffusion
is the
net movement of particles
from
high concentration to low concentration
down the
concentration gradient
does not require
energy
occurs in
gases
liquids
example
oxygen entering cells
carbon dioxide leaving cells
osmosis
is the
diffusion of water molecules
through a
partially permeable membrane
from
high water potential
to
low water potential
related to
tonicity
active transport
is the
movement of substances
from
low concentration
to
high concentration
against the
concentration gradient
requires
energy(ATP)
uses
carrier proteins
endocytosis
is the
uptake of materials into the cell
by
engulfing them with the cell membrane
forms
vesicle inside the cell
requires
energy
exocytosis
is the
release of materials from the cell
by
vesicles fusing with the cell membrane
moves
substances out of the cell
requires
energy
tonicity
refers to
the relative concentration of solutes in solutions
determines
the direction of osmosis
types
hyptonic
is the
lower solute concentration
water will
move into the cell
isotonic
is the
equal solute concentration
has no
net water movement
hypertonic
is the
higher solute concentrations
water will
move out of cell