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Title: physioex9.0 exercise 3 activity 8 Post by: tazzy08 on Feb 28, 2012 Activity 8,
Question 1: When the stimulus intensity is increased, what changes: the number of synaptic vesicles released or the amount of neurotransmitter per vesicle? Question 2: What happened to the amount of neurotransmitter release when you switched from the control extracellular fluid to the extracellular fluid with no Ca2+? Question 3: What happened to the amount of neurotransmitter release when you switched from the extracellular fluid with no Ca2+ to the extracellular fluid with low Ca2+? Question 4: How did neurotransmitter release in the Mg2+ extracellular fluid compare to that in the control extracellular fluid? Question 5: How does Mg2+ block the effect of extracellular calcium on neurotransmitter release? Title: Re: physioex9.0 exercise 3 activity 8 Post by: robertling on Feb 28, 2012 Question 1: When the stimulus intensity is increased, what changes: the number of synaptic vesicles released or the amount of neurotransmitter per vesicle? The number of synaptic vesicles released increases when the stimulus intensity increases. Question 4: How did neurotransmitter release in the Mg2+ extracellular fluid compare to that in the control extracellular fluid? The neurotransmitter release was less when magnesium was added. |