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TRANSPORT ACROSS CELL MEMBRANES
TYPES OF TRANSPORT ACROSS MEMBRANES
FACILITATED DIFFUSION
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Created by
Jasmine Singh
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Cards (4)
WHAT IS FACILITATED DIFFUSION?
movement
of
substances
from an area of
higher concentration
to an area of
lower concentration
using
proteins
as
transport molecules
(
passive
)
WHAT IS MOVED IN FACILITATED DIFFUSION?
ions
or
polar molecules
FACILITATED DIFFUSION THROUGH CHANNEL PROTEINS?
selective tubes
filled
with
water
, enabling
water-soluble ions
to
pass through
the
membrane
FACILITATED DIFFUSION THROUGH CARRIER PROTEINS?
bind
with a
molecule
(
glucose
) causing a
change
in
protein shape
which means it is
released
to the
other side
of the
membrane
