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1474408
Biology ~ 1.4: Membrane Transport
Description
International Baccalaureate Biology Mind Map on Biology ~ 1.4: Membrane Transport, created by elisa.klophaus on 10/16/2014.
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biology
ib
biology
international baccalaureate
Mind Map by
elisa.klophaus
, updated more than 1 year ago
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Created by
elisa.klophaus
almost 10 years ago
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Resource summary
Biology ~ 1.4: Membrane Transport
Fluid Mosaic Model
Movement
Simple Diffusion
Passive
High concentration to low
Down concentration gradient
Osmosis
Down Ψ gradient
Strong solution = lots of solute = low Ψ
Across selectively permeable membrane
WATER ONLY
Hypertonic
Lower concentration of water OUTSIDE cell
Water diffuses out of cell
Isotonic
Equilibrium
Hypotonic
Lower concentration of water INSIDE cell
Water diffuses into cell
Passive
Water displacement
Facilitated Diffusion
Passive
From high to low concentration
Help from carrier proteins
ENERGY NOT REQUIRED
Molecules too big to diffuse normally so they require help
Eg: Glucose
Active Transport
Against concentration gradient
Requires energy
ATP
ADP
Pi
Rate of diffusion
Surface Area
Increase
Faster
Concentration
Increase
Faster
Diffusion Path
Increase
Slower
Membrane Proteins
Increase
Faster
Fluidity
Endocytosis
Movement of material into the cytoplasm
Exocytosis
Movement of material out of the cytoplasm
Phagocytosis
Solid molecules
Pinocytosis
Liquid molecules
Transport
Uniport
One way
Cotransport
Symport
Two ways (same direction)
Antiport
Two ways (opposite direction)
Media attachments
2000px-Cell_membrane_detailed_diagram_en.svg (image/png)
1280px-Osmotic_pressure_on_blood_cells_diagram.svg (image/png)
9351175 (image/png)
2000px-Scheme_facilitated_diffusion_in_cell_membrane-en.svg (image/png)
actran2.gif (image/gif)
Endocytosis-exocytosis-2 (image/jpg)
exoendocyt.JPG (image/JPG)
Fig12_29UniCotransport.GIF (image/GIF)
1326857040 (image/jpg)
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