This is a self test - all these questions are things you really should know before you sit module three. What I reckon is that you should do is this. Have a go at all the questions - then check your answers - then try it again at a later date - keep going until you get all these questions right.

1. From what structure in the heart does the heartbeat originate?
2. Where in the heart are electrical impulses delayed.
3. What type of valves are found between the ventricles and the major arteries leaving the heart?
4. What type of blood vessel has thin walls and large lumens?
5. In what form is carbon dioxide transported in the blood?
6. Which ions are responsible for charge balancing in the carriage of carbon dioxide?
7. Why would smoking a cigarette immediately before running an 800m race impair performance? (3)
8. Give a difference in constitution between tissue fluid and plasma
9. How is lactic acid removed from the blood? (3)
10. Why does anaerobic exercise lead to fatigue? (3)
11. Describe the sequence of events where somebody stops breathing in and starts to breathe out (6)
12. To which side is the ODC for foetal haemoglobin shifted?
13. To which side is the ODC haemoglobin shifted when the temperature is increased?
14. To which side is the ODC for a llamas haemoglobin shifted? (llamas live at high altitude)
15. To which side is the ODC for haemoglobin shifted when the concentration of carbon dioxide is increased?
16. Which tissues transport organic substances in plants?
17. What is the main plant translocate? (the main form in which carbohydrates are transported round plants)
Tip If your answering online clicking a link will wipe out your answers so print them off or right click the link and open in new window (sorry if it's teaching you to suck eggs)

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