Which one of the following conclusions can be made based on the graph?
A - VCE - SSCE Biology - Question 13 - 2017 - Paper 1
Question 13
Which one of the following conclusions can be made based on the graph?
A. At point T photosynthesis is no longer occurring.
B. The optimal level of light intensity f... show full transcript
Worked Solution & Example Answer:Which one of the following conclusions can be made based on the graph?
A - VCE - SSCE Biology - Question 13 - 2017 - Paper 1
Step 1
A. At point T photosynthesis is no longer occurring.
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Answer
This statement can only be validated by examining the latest point where photosynthesis is still evident on the graph. If point T is beyond this, then the statement is true.
Step 2
B. The optimal level of light intensity for photosynthesis is 40 AU.
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Answer
To confirm this, one needs to identify the peak point on the graph where the rate of photosynthesis is maximized. If 40 AU corresponds to this peak, then this statement can be regarded as true.
Step 3
C. At point S the amount of oxygen output is a third of that at point P.
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This requires clarity on the numerical values of oxygen output at points S and P. If the value at S is calculated or indicated to be one-third of that at P, this statement holds.
Step 4
D. Below 10 AU of light intensity the aerobic respiration rate is greater than the photosynthesis rate.
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If the graph depicts a greater rate of respiration below 10 AU compared to photosynthesis, this can be confirmed as true. This is the only statement confirmed by the marking scheme.
