Investigating Two Aspects of Homeostasis

Investigating Two Aspects of Homeostasis

Results:

Time of exercise (min)

Mass Of Cotton Wool (Gram)

Mass of Sweat

(Gram)

Pulse Rate

(Beats per minute)

0

0.52

0.01

50

5

0.535

0.265

60

6

0.59

0.37

65

7

0.60

0.6

70

8

0.51

0.71

95

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Conclusion: In the experiment we compared the amount of sweat

produced, to how many heart beat per minute that occurs before and

after vigorous exercise. We found out that the more exercise we do the

more we sweat and pulse rate increases. The graphs show us a strong

positive correlation in both of the graphs.

Aerobic Respiration happens when we do this experiment because when we

do exercise we need energy, therefore the process completely brakes

down, glucose molecules to release energy, water and carbon dioxide

are release; Glucose + Oxygen [IMAGE]Carbon Dioxide + Water + Heat

energy, during aerobic respiration it increases your pulse rate and

sweat production because the brain detects the lactic acid so it pumps

blood round the body to remove it, causing the blood capillary to open

up by the skin to release heat from the body, sweat cools us down when

it evaporates, as the heat is carried away with the vapour.

The results support my Hypothesis because when we did more exercise we

produced more sweat and our pulse rate increased due to aerobic

respiration.

Evaluation: I’d say this was a successful experiment without any

dangerous activities, the evidences we obtained was successful for the

amount of experiments we did, as we only did five experiments then we

ran out of time but it still show a steady increase in sweat

production and pulse rate.

The accuracy of the results was fairly good because the timing of the

exercise and the measurements of the cotton wool with sweat on were