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How does carbon (IV) oxide concentration affect the rate of photosynthesis?
This biology lab report example investigates how varying levels of carbon dioxide influence the rate of photosynthesis in plants. Using a simulator, our lab report writer measures the amount of oxygen produced—indicated by bubbles—at different carbon dioxide concentrations. The results clearly demonstrate an increase in photosynthesis as carbon dioxide levels rise, confirming the direct relationship between these factors.
September 17, 2024
* The sample essays are for browsing purposes only and are not to be submitted as original work to avoid issues with plagiarism.
Surname 1
Student's Name
Professor
Course
Date
Photosynthesis
Research Question
How does carbon (IV) oxide concentration affect the rate of photosynthesis?
Background
The biological process through which green plants make food is called photosynthesis. For
photosynthesis to occur, three factors must be present; light, carbon (IV) oxide, and water.
During photosynthesis, carbon (IV) oxide molecule is broken into carbon and oxygen atoms.
The end product of photosynthesis is glucose and oxygen gas. The process depends on light
to produce energy (Dogutan et al. 3183). The process of photosynthesis can be summarised
by the following chemical equation below;
From the above equation, six molecules of carbon (IV) oxide and water in the
presence of light produce a single molecule of glucose and six molecules of oxygen. There is
a positive association between carbon (IV) oxide concentration and the rate of
photosynthesis. Increasing carbon (IV) oxide concentration will increase the rate of
photosynthesis, and thus more oxygen gas will be produced. In this experiment, the
production of bubbles (oxygen) will be assumed to represent the rate of photosynthesis.
Procedure
Surname 2
1) Launch the simulator using the link below; https://scratch.mit.edu/projects/
133475453/embed
2) Adjust the brightness to 20 k/Lux and set the color of light to white by pressing writer
(W) as shown by the image below;
3) Adjust the carbon (IV) oxide concentration to 300 ppm and record the number of
bubbles produced at 60 seconds.
4) Repeat step 3 above two more times and record the data.
5) Repeat step 3-4 two using various concentration of carbon (IV) oxide.
Data
Table 1: raw data table
Carbon (IV) oxide
concentration (ppm)
Number of bubbles
Trial 1
Trial 2
Trial 3
300
8
8
8
400
18
17
18
Surname 3
The average number of bubbles
I used some processes to calculate the average bubbles produced, as recorded in table 2
below;
Table 2: Processed data table
Analysis
Based on the data from table 2 above, it is clear that as the carbon (IV) oxide concentration
increases, the process of photosynthesis (number of bubbles) also increases. When the carbon
550
20
21
20
700
22
22
22
900
24
24
24
1000
26
26
26
1300
28
28
28
Theaveragenumberofbubbles=Trial1 + Trial1 + Trial1
3
Averagecurrent(300ppm)=8 + 8 + 8
3
= 8
Carbon (IV) oxide concentration
(ppm)
The average number of
bubbles
300
8
400
18
550
20
700
22
900
24
Surname 4
(IV) oxide concentration was 400 ppm, the average number of bubbles was 18. As the carbon
(IV) oxide concentration increased to 900, the average number of bubbles was 24.
The data above can be plotted as shown by the graph below;
Figure 1: Graph of carbon concentration vs. number of bubbles
Based on the graph above, there is a direct relationship between carbon concentration and the
process of photosynthesis (number of bubbles). As the concentration increases, the rate of
photosynthesis (the number of bubbles) increases. The co-efficient of the above graph;
The R-value is 0.86, confirming the strong positive association between carbon (IV) oxide
concentration and the process of photosynthesis.
Conclusion
From this experiment, it can be concluded that there is a strong association between carbon
(IV) oxide concentration (ppm) and the rate of photosynthesis (bubbles produced). As the
Carbon concentration vs number of bubbles
Number of bubbles
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R2= 0.7524
R= 0.7524
R= 0.86
Surname 5
process of photosynthesis continues, oxygen will be released as bubbles. As the concentration
of carbon (IV) oxide increases, more oxygen gas (bubbles) will be produced as a by-product
of photosynthesis.
Surname 6
Works Cited
Dogutan, Dilek K., and Daniel G. Nocera. "Artificial photosynthesis at efficiencies greatly
exceeding that of natural photosynthesis." Accounts of Chemical Research 52.11
(2019): 3143-3148.
September 17, 2024
24/7 custom essay writing by real academic writers
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Academic level:
Undergraduate 1-2
Type of paper:
Lab report
Discipline:
Biology
Citation:
MLA
Pages:
4 (1100 words)
* The sample essays are for browsing purposes only and are not to be submitted as original work to avoid issues with plagiarism.
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