Submitted by: Submitted by allison17002124
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Category: Science and Technology
Date Submitted: 03/02/2016 09:05 AM
Moontlike Eksamenvrae 2015
Possible Exami Questions April 2015
1. Use sketches to explain the classification of neurons with regard to the number of projections.
2. a drawing of a typical chemical synapse. Use that to explain the transfer of an action potential from one neuron to another.
3. Distinguish between the following properties of synapses:
a) Temporale & ruimtelike summasie. / Temporal & spatial summation.
b) Konvergensie en divergensie. / Convergence & divergence.
c) Pre- en postsinaptiese inhibisie of fasilitasie. / Pre & post synaptic inhibition or facilitation.
d) Konvergensie en ruimtelike summasie. / Convergence & spatial summation.
e) EPSP & IPSP. / EPSP & IPSP.
4. Sketch the relationship between the hypothalamus and the hypophysis and name the target structures and functions of the relevant hormones.
5. “The RMP is given as -70 mV”. First of all, explain the significance of the negative sign, thenceforth, the origin, existence and maintenance of the RMP. Your answer must include the relative concentrations of the relevant ions.
6. Sketch and explain a somatic reflex. With regard to that, list and/or explain the differences and similarities between somatic and autonomic reflexes.
7. Do the same as above, but sketch autonomic reflexes.
8. Use annotated sketches to explain the difference between the myopic and hyperopic eye. Also indicate how it can be rectified with corrective lenses.
9. Explain the functioning of the rods when exposed to bright and poor light conditions, as well as how the receptor potential is generated. Use well descriptive annotated sketches to emphasize your answer.
10. Outline a graph of an action potential and explain the reason of each part/phase of the graph.
11. Name and explain all the transport mechanism across the cell membrane than needs energy as well as those...