Respiratory System Lab Report

This lab will be testing the respiratory system. The respiratory system is how the body gets oxygen and gets rid of carbon dioxide. The body needs oxygen to perform cellular respiration and make ATP. The body also needs to get rid of carbon dioxide because when carbon dioxide builds up in the body it lowers blood pH(Kellman, 2000). Oxygen is taken in when the body inhales, it is taken through the lungs to the alveoli, where it is transformed into the hemoglobin and transported around the body using the circulatory system (Zimmerman, 2016). When a normal cell gets rid of carbon dioxide it is picked up by hemoglobin in the blood and moved throughout the circulatory system to the lungs to be exhaled.
The purpose of this experiment is to show that exercising increases respiratory rate in order to maintain homeostasis. When the body is exercising it needs more oxygen for cellular respiration (Hoeff, 2014).The byproduct of this reaction is carbon dioxide which needs to be exhaled. To get rid of the increase in carbon dioxide, the body has to increase its respiratory rate until the pH of the blood has reached levels consistent with homeostasis . The independent variable is exercising, the dependant variable respiratory rate. It is predicted that if a person exercises for 30 seconds then the respiratory rate per minute will increase. …show more content…
Then, multiply respiratory rate by two and record the data. Next, have the person run in place for 30 seconds. Then, count each time the person inhales for 30 seconds immediately after the exercise. After that, multiply respiratory rate by two and record data. Complete the trial by performing three repetitions and averaging