Membrane Transport

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Membrane Transport

• Chapter 11

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Transcellular transport of glucose
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The Na - K pump is an ATPase
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Response of red blood cells to changes in
osmolarity of extra cellular fluids
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Distribution of phospholipids and glycolipids in
the lipid bilayer of human red blood cells
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Few Ions are required to cause a large change in
membrane potential
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Electrochemical gradient vs. membrane potential
Can work additively or against each other
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Selectivity of a K channel
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Ion Channels fluctuate between closed and open
conformations
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Gating of K channel
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Gating of Ion Channels
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A Typical Vertebrate Neuron
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Ball and Chain Model of Rapid inactivation of ion
channel
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Changes in Na channels and the action potential
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Changes in Na channels and the action potential
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Myelination
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Schwann cells and myelination of axons
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Patch Clamp Recording
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Patch Clamp Recording
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Patch Clamp Measurements of single voltage gated
Na channel
3 experiments on the same patch
cumulative of 144 experiments
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Resting Chemical Synapse
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Active Chemical Synapse
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Neuromuscular Junction in a Frog
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Three Conformations of Acetyl Choline receptor at
the neuromuscular junction
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DVD Clip 49
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Ion Channels at Neuromuscular Junction
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Motor Neuron Cell body in the Spinal Chord
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Motor Neuron Cell body in the Spinal Chord
thousands of axon terminals are stained red by
antibody that recognizes a protein in synaptic
vesicles