Q.1
What is the chemical that causes cramp?
  • Glucose
  • Lactose
  • Glucosic acid
  • Lactic acid
Q.2
After exercise, why do your heart rate and breathing rate stay higher than normal?
  • To get rid of lactic acid
  • Because it takes a while for your chest and heart muscles to slow down
  • Because it takes time for messages to reach your brain to say that you have stopped exercising
  • Because your body is staying ready just in case you start exercising again
Q.3
How does exercise help your circulation?
  • By making you stronger and fitter
  • By helping your body control it's metabolic rates
  • By creating LDL cholesterol
  • By increasing levels of HDL cholesterol
Q.4
Why is over exercising bad for you?
  • It can strain your heart muscles
  • It makes you go dizzy
  • It takes up too much time
  • You get too much protein in your blood
Q.5
Which of the following statements about a balanced diet is true?
  • Carbohydrates include sugars and starch
  • Proteins are needed for growth and repair
  • Vitamins and minerals are needed in large quantities
  • Fats can come from both animal and plant sources
Q.6
During exercise, breathing rate and heart rate both increase. Why?
  • To deliver more oxygen to your muscles
  • Because you are using up the nutrients from your last meal
  • To deliver more oxygen to your stomach so that you can release more energy from your food
  • Because your blood vessels are bigger
Q.7
Which long term health problem is related to a lack of exercise?
  • Heart disease
  • Beri-beri
  • Strokes
  • Diabetes
Q.8
What is metabolic rate?
  • The speed of eating
  • The speed of digestion
  • The speed of the chemical reactions in your body
  • The speed your blood flows through your arteries
Q.9
Which of the following statements is true about your metabolic rate after exercise?
  • It increases permanently
  • It decreases permanently
  • It stays high for a while and then goes back to normal
  • It stays low for a while and then goes back to normal
Q.10
Why do your muscles need to be supplied with more blood during exercise?
  • They are contracting and relaxing
  • Blood makes them larger so they can do more work
  • Muscle cell respiration is greater during exercise
  • So that they can get more protein for energy
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