It is reasonable to conclude that
A - VCE - SSCE Biology - Question 13 - 2020 - Paper 1
Question 13
It is reasonable to conclude that
A. Cellulast® is inactive at 61 °C.
B. Cellulast® is denatured at 35 °C.
C. the optimum pH for Cellulast® is pH 5.
D. the optimum t... show full transcript
Worked Solution & Example Answer:It is reasonable to conclude that
A - VCE - SSCE Biology - Question 13 - 2020 - Paper 1
Step 1
A. Cellulast® is inactive at 61 °C.
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Answer
At 61 °C, Cellulast® likely denatures, leading to loss of activity. Therefore, it can be concluded that Cellulast® is inactive at this temperature.
Step 2
B. Cellulast® is denatured at 35 °C.
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Answer
Cellulast® is not typically denatured at 35 °C. This temperature is generally within the range for optimal activity for many enzymes, hence this statement is less reasonable.
Step 3
C. the optimum pH for Cellulast® is pH 5.
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The optimal pH for many cellulases, including Cellulast®, is indeed around pH 5. This supports the idea that this enzyme functions best in slightly acidic conditions.
Step 4
D. the optimum temperature for Cellulast® is around 57 °C.
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Research suggests that the optimum temperature for Cellulast® is around 55-60 °C, thus concluding that around 57 °C is reasonable for optimum functionality.
