differences and similarities between simple diffusion, facilitrated diffusion and osmosis
Answers
Answer:
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Explanation:
Simple diffusion and facilitated diffusion are similar in that both involve movement down the concentration gradient. The difference is how the substance gets through the cell membrane. ... Charged or polar molecules that cannot fit between the phospholipids generally enter and leave cells through facilitated diffusion.
Explanation:
SIMPLE DIFFUSION
VERSUS
FACILITATED DIFFUSION
Facilitated diffusion is the
Simple diffusion is an
transport of substances
unassisted type of diffusion
across a biological membrane
in which a particle moves
through a concentration
from higher to a lower
gradient by means of a
concentration
carrier molecule
Occurs through
Occurs through the
phospholipid bilayer
transmembrane proteins
I
Transports small, non-polar
Transports large or polar
particles
particles
Occurs through specific
Occurs directly through the
cell membrane
facilitator molecules
Rate of diffusion depends on
Rate of diffusion is directly
proportional to the
the kinetics of carrier-
concentration gradient and the
mediated transport
membrane permeability of the
solute molecule
Examples: Diffusion of gases
Examples: Counter-transport
of chloride/bicarbonate in
across the respiratory
membrane, diffusion of
renal tubular cells, cotransport
molecules from the blood to
of sodium with sugars like
the cells through the interstitial
glucose, galactose,etcC.
fluid