diffusion and equilibrium passive transport. continuous gradient high concentration low...
DESCRIPTION
Discontinuous Gradient HIGH CONCENTRATION LOW CONCENTRATIONTRANSCRIPT
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DIFFUSION AND EQUILIBRIUM
PASSIVE TRANSPORT
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Continuous Gradient
HIGH CONCENTRATION
LOW CONCENTRATION
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Discontinuous Gradient
HIGH CONCENTRATION
LOW CONCENTRATION
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DIFFUSION
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EQUILIBRIUM
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Continues until EQUILIBRIUM
Channel Proteins
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Facilitated Diffusion
• Using a Carrier protein (see e-activities on webpage).
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Entering and Exiting the Cell
• http://www.youtube.com/watch?v=HndmASfmI8Y
• Exocytosis EndocytosisExiting the cell Entering the cell
Phagocytosis Pinocytosis
(Food) (liquids)
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Active Transport
• go to Go.hrw.com: http://go.hrw.com/resources/go_sc/interactOnline/hx/hxcen2_io.swf
•
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Vocabulary
Define:1. concentration gradient2. passive transport3. Diffusion4. Osmosis5. hyptertonic
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Passive Transport Active Transport
Comparison of Active and Passive Transport
Both
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http://www.youtube.com/watch?v=s0p1ztrbXPY&feature=related passive transport
http://www.youtube.com/watch?v=STzOiRqzzL4&feature=related active transport
http://www.youtube.com/watch?v=awz6lIss3hQ&feature=related Na/K pump
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Signal Transduction• Transducer• From Wikipedia, the free encyclopedia:
• A transducer is a device that converts one type of energy to another. The conversion can be to/from electrical, electro-mechanical, electromagnetic, photonic, photovoltaic, or any other form of energy. While the term transducer commonly implies use as a sensor/detector, any device which converts energy can be considered a transducer.
• http://www.youtube.com/watch?v=bU4955rLv_8&feature=related• Signal Transduction
• http://www.youtube.com/watch?v=tMMrTRnFdI4&feature=related• More on signal transduction
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Signal Transduction
Receptor
protein
G
Binding site
Signal
Enzyme
ATP
cAMP
Na
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OA• An amoeba is swimming in pond water
(which contains some salt, but not as much as the ocean). What happens when the amoeba is put into distilled water? What happens when it is put into ocean water?
Ocean
Pond
DistilledWater
80 80
50 50
0 0
% Na %Cl iso-, hypo- or hyper- tonic
?
?
?