PHYSIO EXERCISE 3 ACTIVITY 8 TEST WITH SOLUTIONS | ALREADY GRADED A+

lOMoAR cPSD| 32635183




lOMoAR cPSD| 32635183




PHYSIO EXERCISE 3 ACTIVITY 8 TEST WITH
SOLUTIONS 2024-2025| ALREADY GRADED
A+

PhysioEx Lab Report
Exercise 3: Neurophysiology of Nerve Impulses
Activity 8: Chemical Synaptic Transmission and Neurotransmitter Release
Name:
Date: 14 June 2020
Session ID:

Pre-lab Quiz Results
You scored 100% by answering 5 out of 5 questions correctly.

1 The end of the axon where it contacts a target is called the

You correctly answered: axon terminal.

2 Neurotransmitter is released into the synaptic gap by

You correctly answered: exocytosis.

3 Exocytosis of neurotransmitter from the axon terminal is triggered by an increase in the
intracellular concentration of

You correctly answered: Ca2+.

4 Neurotransmitter released into the synaptic gap reaches the target cell by

You correctly answered: diffusion.

5 At the target, neurotransmitter

You correctly answered: does all of the above.


Experiment Results
Predict Questions

1 Predict Question 1: You have just observed that each action potential in a burst can trigger
additional neurotransmitter release. If calcium ions are removed from the extracellular solution,
what will happen to neurotransmitter release at the axon terminal?

, lOMoAR cPSD| 32635183




Your answer: There will be no neurotransmitter release.

2 Predict Question 2: What will happen to neurotransmitter release when low amounts of calcium
are added back to the extracellular solution?

Your answer: Neurotransmitter release will increase a small amount.



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