Assuming that there is a channel open for each of the ions below, show direction of movement of ion and give a clear exp

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Assuming That There Is A Channel Open For Each Of The Ions Below Show Direction Of Movement Of Ion And Give A Clear Exp 1 (33.05 KiB) Viewed 70 times

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Assuming that there is a channel open for each of the ions below, show direction of movement of ion and give a clear explanation why. Show all calculations where appropriate: a. [3] [K'] = 100mM [K+], = 500mM -42 mV
5. (a) (e) (b) (c) (d) (11) b. [3] (i) (ii) [CI] = 10mM [CI], = 60mM +10 mV A patient is found to have normal ECF and ICF ion concentrations but you discover that cell permeability to sodium has doubled. Comment on the effect of increased sodium permeability on the resting membrane potential in neurons of this patient? [3] Explain how the resting membrane potential is created. What is the role of the Na+/K+ATPase? [3] Draw a graph for the action potential in a typical neuron and describe events associated with each of the phases. Glutamate is an excitatory neurotransmitter of the CNS. Explain the meaning of an "excitatory" neurotransmitter. Give any 2 mechanisms by which a neurotransmitter may cause "excitatory" effects. Differentiate between; spatial and temporal summation on post synaptic membrane. Convergent and divergent synapses