exercise

Question 1

what happens during anaerobic respiration

Answer 1

oxygen debt breath hard after to muscles cells

pulse and breathing rate high as there are still high level of lactic acid

The blood also sends lactic acid from muscles to liver where its converted back to glucose

oxygen reacts with lactic acid to make harmless c02 and water

leads to muscle fatigue muscles get tired stop contracting efficiently

Question 2

How can you investigate effect on exercise on body

Answer 2

Measuring breathing rate count breaths and heart rate counting pulse(fingers on neck

Make someone sit down for 5 min

then walk 5

slow jog 5

run for 5

Your pulse will increase more intense exercise is as your body need more oxygen to the muscles to take away co2 more

Reduce random errors on your results do it as a group and plot average pulse rate for each exercise