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The experiments can be carried out in the science classroom but there is an opportunity for collaboration with the PE department. [b]Experiment A:[/b] Students measure their resting breathing rate and investigate how different types of physical activity affect their breathing rate.
The unit of rate of respiration is cm 3 /min. To investigate temperature the experiment is repeated at different temperatures, eg 10, 15, 20, 25, 30°C. Previous page
Q6. Select the reasons why heart rate and breathing rate increase during exercise. To provide more oxygen and glucose to the muscles for cellular respiration. The provide muscles with fuel to contract. To remove oxygen from the muscles and body as it is a waste product.
Breathing rate - The number of breaths per minute. Heart rate - The number of heart beats per minute. Gas exchange - The process of oxygen diffusing from the lungs into the blood, and carbon dioxide diffusing from the blood into the lungs. Cellular respiration - A chemical process in cells, which uses sugar as a fuel to provide energy for life ...
Measuring breathing. There are four main ways that breathing can be scientifically measured. These include: Tidal volume - this is the volume of air that is breathed in or out during normal breathing (at rest) Breathing rate - this is the number of breaths taken in one minute (one breath = taking air in and breathing it back out again)
Immediately after exercising, count the breaths taken in 15 seconds and multiply by 4 to obtain the breathing rate per minute. Compare the result to the breathing rate at rest to work out the change in breathing rate as a result of exercise. Repeat this last step every minute after exercise for 5 minutes. Repeat the process for student B.
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then jogs on the spot, at a rate of 160. teps per minute for two minutes. Ie: complete 40 steps every 15 seconds.After the 2 minutes, the participant sits down and cou. s pulse beats, either on the wrist or on the neck, for one whole minute. The experimenter ob. rves carefully the chest and abdomen of the participant to count breathsIf there is ...
