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Transport Processes (Water Potential (((Pressure Potential (((Effect that…
Transport Processes
Water Potential
Pressure Potential
Effect that pressure has on water potential
Pressure is measured in MPA
Water Pressure
Osmotic Potential
Osmotic potential always negative
Cannot diffuse easily
Matric Potential
Waters adhesion to non-dissolved structures
Membrane
Cell walls
Cells and Water Movement
Plasamolysis
Cell Loses Water And shrinks
Incipient plasmolysis
Protoplast pulls completely from cell wall
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Plasmolyzed
lysis
Absorbing water until the cell bursts
Cell Walls Strong enough to resist breakage
Cells grow rather than burst
Plant Cells Can Never Burst
The water Available in Water
Eutrophication
decomposed by bacteria
bacteria use oxygen gas
bodies sink
algae die
Diffusion Osmosis and Active Transport
3 Types of Membranes
Completely Permeable
Selectively Permeable
Freely Permeable
Active Transport
Requires ATP
Proton Pumps in Photosynthesis
Often used to pump molecules against concentration
Osmosis
Diffusion through a membrane
Diffusion
High Concentration to Low Concentration
Intracellular Transport
Vessicle Contents transferred to organelle
Fuse with Other Organelles
The water Available in air
dew
frost
fog
snow
rain
humidity
Force for Transpiration
Air pulls water out of plants
