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Title: Transport across the cell membrane summary table- BIOLOGY
Description: Biology note targets senior high school students/ university students. Course name: SB4U1
Description: Biology note targets senior high school students/ university students. Course name: SB4U1
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Summary: Transport across Membranes
Is Energy
Type of Cellular
Required for the
Transport
Mechanism to
Mechanism
Function?
NO
NO
Direction of Movement of
Substances
Essential
Related
Factor(s)
Solute moves from an area of high
concentration to an area of low
concentration (with the gradient) Concentration Carbon dioxide,
Simple Diffusion
oxygen, water,
gradient
If the solute is water this
glycerol
movement is referred to as
osmosis
Facilitated
diffusion
Water
Concentration
Solute moves from an area of high
(aquaporins),
gradient & a
concentration to an area of low
simple sugars,
channel or
concentration (with the gradient)
amino acids,
carrier protein
ions
Solute moves from an area of low
concentration to an area of high Protein pump
concentration (against the
and energy
Active transport
gradient)
Primary
YES – ATP
YES –
electrochemical Secondary active
gradient (driving
transport
ion)
YES - ATP
Symport -solute moves in same
direction as the gradient driving
ion
Antiport - solute moves in
opposite direct to the gradient
driving ion
Endocytosis
Towards the interior of the cell
YES - ATP
Examples of
Transported
Substances
Exocytosis
Towards the exterior of the cell
Symport or
antiport
protein and
energy
Sugars, amnio
acids, ions
Sugars, amino
acids, ions
Vesicle
Bulk transport of
formation and
macromolecules
energy
Fusion of
vesicle with
Bulk transport of
the plasma
macromolecules
membrane
and energy
Title: Transport across the cell membrane summary table- BIOLOGY
Description: Biology note targets senior high school students/ university students. Course name: SB4U1
Description: Biology note targets senior high school students/ university students. Course name: SB4U1