1. W. McConnell 2004 Kinross High School The Body In Action (D) CHANGING LEVELS OF PERFORMANCE

2. W. McConnell 2004 Kinross High School 1. What causes the pulse you feel in the blood vessel in your wrist? Blood being forced through an artery each time the heart beats.

3. W. McConnell 2004 Kinross High School 2. What causes muscle fatigue? Lactic acid building up in the muscles because they do not have enough oxygen.

4. W. McConnell 2004 Kinross High School 3. Pulse rate and breathing rate ………. after exercise. This is because muscles need more …………. and..…… Heart rate ………….. to increase the blood flow to the muscles. increase oxygen glucose increases

5. W. McConnell 2004 Kinross High School 4. What is the term used to describe the time taken for your heart rate to return to normal after exercise? Recovery time

6. W. McConnell 2004 Kinross High School 5. 2 identical twins run a race. Here is information about their pulse rates each minute. What is Fred’s resting pulse rate? How many minutes after the end of the race did it take for Fred’s pulse rate to return to normal? 55 beats a minute 10 minutes

7. W. McConnell 2004 Kinross High School 6. 2 identical twins run a race. Here is information about their fitness. It shows their pulse rates each minute. What is Fred’s recovery time? What is Charles’ recovery time? Why is there a difference between them? 10 minutes We do not know – he has not reached it yet. Fred is fitter

8. W. McConnell 2004 Kinross High School 7. When not enough oxygen reaches the muscles anaerobic respiration takes place. Complete the word equation below for anaerobic respiration. …………….. ………………… + ….……… glucoselactic acidenergy

9. W. McConnell 2004 Kinross High School 8. What type of respiration occurs when enough oxygen is taken into break down the food completely to release energy ? aerobic respiration

10. W. McConnell 2004 Kinross High School 9. What effect does training have on recovery time? Training decreases recovery time

11. W. McConnell 2004 Kinross High School 10. What can we use as a measure of how quickly we can respond to stimuli from our environment ? Reaction time – if our reaction time to stimuli is short we can respond quickly to stimuli from our environment.

12. W. McConnell 2004 Kinross High School 11. Answer true or false to the following…. Athletes have a smaller lung volume than non-athletes Training increases muscle strength and endurance During exercise lactic acid is used up in the muscles Everyone’s pulse rate increases during exercise true false true false

13. W. McConnell 2004 Kinross High School 12. How is the energy from respiration given off? In small amounts

14. W. McConnell 2004 Kinross High School 13. How is heat energy released from respiration detected? As a temperature rise

15. W. McConnell 2004 Kinross High School 14. What term is used for sore and inefficient muscles after exercising? Muscle fatigue

16. W. McConnell 2004 Kinross High School 15. What are the 3 ways in which fitness training improves your body’s efficiency? Heart pumps more blood every beat Increases flow of blood through muscles Increases lung volume

17. W. McConnell 2004 Kinross High School How many questions did you get correct? These revision questions will automatically run again. If you want to return to the list of revision topics click on the back browser button on your toolbar.