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Respiration And Circulatory Lab Essay

1395 words - 6 pages

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 ...view middle of the document...

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)
| 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...

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