If oxygen had not been bubbled through the culture after point P, it is reasonable to assume that
A - VCE - SSCE Biology - Question 12 - 2003 - Paper 1
Question 12
If oxygen had not been bubbled through the culture after point P, it is reasonable to assume that
A. the rate of production of carbon dioxide would have continued to... show full transcript
Worked Solution & Example Answer:If oxygen had not been bubbled through the culture after point P, it is reasonable to assume that
A - VCE - SSCE Biology - Question 12 - 2003 - Paper 1
Step 1
A. the rate of production of carbon dioxide would have continued to fall.
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Answer
This option suggests a continuous decline in carbon dioxide production without oxygen. It lacks evidence, as one cannot ascertain the exact pattern of change.
Step 2
B. the rate of production of carbon dioxide would have risen, but not as much as it did when oxygen was bubbled through.
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This implies some increase, but it's not definitive without oxygen. The relationship between oxygen and carbon dioxide production is not clear enough to support this.
Step 3
C. the rate of production of carbon dioxide would have levelled off and remained at a value similar to that at point P.
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This option suggests stability after point P, indicating that production would not be significantly impacted without the presence of oxygen. The evidence highlights this as a reasonable assumption.
Step 4
D. there is insufficient data available to make a worthwhile prediction about what may have happened.
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While this acknowledges uncertainty, the question allows for reasonable assumptions based on known biological principles, making it less favorable than option C.
