Monday, November 1, 2010

FAQ-Chapter 12- Coordination and Response

Paper 2 :

1. The transmission pathway of information: From Receptor to Effector- The flow chart of the event..Response to the question whether it is a Voluntary action, Involuntary action or even REFLEX ACTION.
* Dont forget the involvement of the 3 types of neurones !

2. The transmission of information across SYNAPSE [ 4 marks]

3. Involuntary action controlled by SPINAL CORD - Reflex action . The effectors are skeletal muscles ![ 6 marks]

4. Involuntary actions controlled by MEDULA OBLONGATA- digestion, blood circulation, breathing..the effectors are smooth muscles, cardiac muscles and glands!

5. Coordination involving THE NERVOUS SYSTEM and THE ENDOCRINE SYSTEM in a 'fight or flight' situation- Adrenaline . [ 5 marks]

6. Kidney and urine formation:
Ultrafiltration [ 3 marks], Reabsoption [ 3 marks], Secretion [ 2 marks]

7. Diagram of a functional nephrone.

8. Compare excretion and urination

9.Relating blood osmotic pressure to urine output. (Paper 3)

10. Mechanism of osmoregulation - The negative feedback mechanism- The chart - Homeostasis...Make sure to response to the question of the situation : Too much water or too little water !

11. The regulation of body temperature. The chart.


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