Respiration and Circulatory Lab
Introduction
Cellular respiration is a chemical reaction that involves the breakdown of glucose to provide ATP energy for the cell (Rogers, 2010, October 12).
This process occurs in mitochondria between blood and the air in alveoli. The waste products of cellular respiration are carbon dioxide and water. Carbon dioxide is a gas that is released from the cells during exhalation. In order to determine the effects of exercise on the rate of cellular respiration, breathing rate, heart rate, and carbon dioxide production will be measured at rest and after 1 and two minutes of exercise. breathing rate is measured in breaths per minute, heart rate in beats per minute, and an acid-base indicator bromothymol blue will be used to indicate the presence of carbon dioxide. Bromothymol blue solution changes color from blue to yellow when carbon dioxide bubbled into it. The more carbon dioxide you exhale into the bromothymol blue solution, the faster it will change color to yellow.
Hypothesis
If people do exercise then the body will produce more carbon dioxide, due to the harder muscles work the more ATP they need. The body cells will break down more glucose by using more oxygen, and produce more carbon dioxide. Moreover, the breathing rate and heart rate also will increase after I exercise.
The Term Paper on Ecosystem: Carbon Dioxide
Ecosystem is a community of living organisms (plants, animals and microbes) in conjunction with the nonliving components of their environment (things like air, water and mineral soil), interacting as a system. These components are regarded as linked together through nutrient cycles and energy flows. As ecosystems are defined by the network of interactions among organisms, and between organisms and ...
Materials
* 2 Small Beakers
* 2 Test tubes
* cup
* Bromthymol blue solution
* Straw
* Stop watch
Procedure
PART A: Resting (no exercise)
1. Measuring 20 mL water and pour it into a beaker.
2. Adding 8 drops of bromthymol blue into the beaker by using a dropper and mix them with the water to make a bromthymol blue solution.
3. Using a straw gently blow into the bromthymol blue solution until the color change from blue to yellow.
4. Observing how long the bromthymol blue solution from blue become to yellow, and let your partner record the time in Table 1.
5. Repeating steps1-4 two more times.
6. Calculate the average time of the 3 trails. Record this in table 1.
Measuring Breathing Rate:
1. Count how many times you breathe in 1 minute. Record the data in Table 2.
2. Repeat the process two more times.
3. Calculate your average breathing rate. Record the data in Table 2.
Measuring Heart rate:
1. Let your partner count the number of breaths in 1 minute. Record the data in Table 3.
2. Repeat the process two more times.
3. Calculate your average heart rate. Record the data in Table 3.
PART B: Increased Muscle Activity (Exercise)
1. Doing jumping jacks for 1 minute.
2. Partner prepares the BTB solution during exercising.
3. Using straw blow into the BTB solution and observe how long it takes for the solution to change from blue to yellow. Record this in Table 1.
4. Let your partner count your breathing and heart rates. Record these data in Tables 2 and 3.
5. Remake the BTB solution.
6. Doing jumping jacks for 2 minutes.
7. Repeat step 3 and 4.
8. Record data from another 3 classmates.
Data/ Results
Table 1. Carbon Dioxide Production (time it takes BTB to change color)
The Coursework on Web Page Student Exercise Diary
Introduction: This essay will go through each of the five exercises that were completed and explain how they could be improved and what were the good points about them and how this would benefit the student. It will also have a conclusion that will go through alternative exercises and how the exercises have run over the course of the module. CMT Exercises: As part of the CMT 2200 module five ...
| Student 1 | Student 2 | Student 3 | Student 4 |
RESTING | Trial 1 | 39s | 53s | 38s | 26s |
| Trial 2 | 50s | 50s | 31s | 18s |
| Trial 3 | 46s | 48s | 23s | 18s |
| Average | 45s | 50.3s | 30.6s | 20.6s |
EXERCISE | 1 minute | 32s | 29s | 20s | 11s |
| 2 minute | 25s | 23s | 24s | 8s |
The graph shows the average time of taking BTB solution to change color to yellow during resting and after 1 minute exercise and 2 minutes exercise respectively.
Table 2. Breathing Rate (breath/ minute)
| Student 1 | Student 2 | Student 3 | Student 4 |
RESTING | Trial 1 | 23 | 17 | 16 | 14 |
| Trial 2 | 20 | 17 | 12 | 13 |
| Trial 3 | 20 | 18 | 13 | 13 |
| Average | 17.3 | 21 | 13.6 | 13.3 |
EXERCISE | 1 minute | 63 | 58 | 28 | 22 |
| 2 minute | 66 | 64 | 36 | 30 |
The graph shows the average breathing rate of four students during resting and after 1 minute exercise and 2 minutes exercise respectively.
Table 3. Heart Rate (beats/minute)
| Student 1 | Student 2 | Student 3 | Student 4 |
RESTING | Trial 1 | 75 | 70 | 81 | 66 |
| Trial 2 | 72 | 73 | 78 | 66 |
| Trial 3 | 70 | 70 | 79 | 64 |
| Average | 72.3 | 71 | 79.3 | 65.3 |
EXERCISE | 1 minute | 95s | 125s | 112s | 90s |
| 2 minute | 115s | 128s | 118s | 100s |
This graph shows the average heart rate of four students during resting and after 1 minute exercise and 2 minutes exercise respectively.
Results
According to the table 1, the students’ average resting time of the BTB solution changed color was 36.6s. When the students did the jumping jacks for 1 minute, the average time decreased to 23s. When activity level increased due to jumping jacks for 2 minutes, the average time decreased to 20s. According to the Table 2, the breathing rate became much quicker after people did jumping jacks. In addition, as the activity level increased, there was a trend that shows an increase in heart rate. Overall, Carbon dioxide production, breathing rate and heart rate are increased after exercising, and all of them will increase as an increase in muscle activity.
The Essay on How Does Exercise Effect The Heart Rate
How Does Exercise Affect The Human Heart Beat Aim: To find out how aerobic and anaerobic exercise affects the heart beat. Introduction: Respiration is continually occurring through out our lives, it may be taken for granted, but without the presence of respiration it would be impossible to survive. Respiration is the breaking down of energy, particularly glucose, from the food we eat, either using ...
Conclusion
In this experiment, three indicators which are breathing rate, heart rate, and carbon dioxide production were measured at rest and after 1 and two minutes of jumping jacks; in order to observe and analyze the effect of exercise on respiration.
Exhaling carbon dioxide causes the BTB solution to become more acidic. Increase in aerobic activity increases the rate of carbon dioxide production. This results in a quicker color change as the pH decreased. Adding carbon dioxide to the BTB solution, a carbonic acid is formed. The more carbon dioxide you breathe into the BTB solution, the faster it will change color to yellow. It will turns green in low concentration and yellow in high concentration.
The body will produce more carbon dioxide as the increase in activity level. The body require more energy when people exercise, which means people’s tissues consume more oxygen than they do at rest. More oxygen is taken in and more carbon dioxide is released.
According to the Table 2, the breathing rate became much quicker after people did jumping jacks. During exercise, the lungs are responsible for transporting more oxygen to people’s cells. The faster consumption of oxygen, the faster people breathe.
In addition, as the activity level increased, there was a trend that shows an increase in heart rate. When people are exercising, oxygen is entering the blood in the lungs and the cells are absorbing oxygen in the capillaries, blood is moving through the body to deliver the good and remove the bad. A faster heart rate means more blood is getting to the lungs and the tissues faster.
Based on the above results, my hypothesis was correct. The breathing rate, heart rate, and carbon dioxide production, all of them will increase as an increase in muscle activity. Energy is supplied to all cells including muscle cells by ATP produced from carbohydrates, fats and proteins. The muscles cells get the energy needed to continue contracting through cellular respiration. This is the process through a cell uses oxygen to burn glucose and make carbon dioxide and ATP energy. In addition, I think it was a fair test because the only variable changed throughout was the activity level and each indicator was tested three times.
The Essay on Carbon dioxide 7
Carbon dioxide is a gas comprising less than 0.04 % of the atmosphere.It is used by plants to make, directly or indirectly, all of the food that we eat.Increases in the concentration of carbon dioxide generally increase the growthrate of plants and decrease their water use. The concentration of carbondioxide in the atmosphere is increasing, mostly as a result of burning of coal,oil, gas and ...
However, there was some human error related to the accuracy of measuring heart rate and breathing rate. Moreover, I did not finish the complete two minutes exercise and I only exercised for one and half minutes. There are some possible improvements that can be made if the experiment was conducted again. First, finish the complete two minutes exercise and do not rest during the process. Secondly, make the movement as standard as possible.
Citation
Freudenrich, C. (n.d.).
Exercise and Aerobic Respiration. Retrieved December 10, 2014, from http://health.howstuffworks.com/wellness/diet-fitness/exercise/sports-physiology5.htm
Rogers, C. (2010, October 12).
Aerobic Respiration and the Heart Rate. Retrieved December 10, 2014, from http://www.livestrong.com/article/277824-aerobic-respiration-and-the-heart-rate/
Hjortdal, V. (2003, August 25).
Circulation. Retrieved December 10, 2014, from http://circ.ahajournals.org/content/108/10/1227.full
