Climate change has been linked to an excess of carbon dioxide in the atmosphere - VCE - SSCE Biology - Question 8 - 2012 - Paper 1
Question 8
Climate change has been linked to an excess of carbon dioxide in the atmosphere. The burning of coal is a major contributor to this excess of carbon dioxide. Microal... show full transcript
Worked Solution & Example Answer:Climate change has been linked to an excess of carbon dioxide in the atmosphere - VCE - SSCE Biology - Question 8 - 2012 - Paper 1
Step 1
Input X
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Answer
Input X can be identified as water or inorganic phosphate, which are essential components for the processes in Chlorella cells.
Step 2
Compound Y
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Compound Y is oxygen, which is produced as a byproduct of photosynthesis.
Step 3
Process M
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Process M refers to the light-dependent reaction, which occurs in the grana of the chloroplast.
Step 4
Process O
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Process O is glycolysis, which occurs in the cytoplasm/cytosol.
Step 5
Process P
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Process P pertains to the stages of cellular respiration, which takes place in the mitochondria.
Step 6
Explain how Chlorella farming prevents carbon dioxide emission
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Chlorella farming can mitigate carbon dioxide emissions by absorbing CO2 during photosynthesis, utilizing it to produce oxygen. This process effectively reduces the amount of carbon dioxide that would otherwise contribute to atmospheric pollution, as the cultivation of Chlorella can potentially sequester more carbon dioxide than is produced in cellular respiration.
Step 7
Conditions to control for optimal growth
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Two key conditions to control are: 1. Suitable temperature, which is crucial for metabolic processes, and 2. Light availability, which is essential for photosynthesis. Additionally, water/space and levels of competition can also be significant factors.
