The following graphs show the way four enzymes, W, X, Y and Z, change their activity in different pH and temperature situations - VCE - SSCE Biology - Question 13 - 2014 - Paper 1
Question 13
The following graphs show the way four enzymes, W, X, Y and Z, change their activity in different pH and temperature situations.
Which one of the following statemen... show full transcript
Worked Solution & Example Answer:The following graphs show the way four enzymes, W, X, Y and Z, change their activity in different pH and temperature situations - VCE - SSCE Biology - Question 13 - 2014 - Paper 1
Step 1
At pH 7, enzyme Y is deactivated at temperatures below 20 °C.
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Answer
This statement is true according to the provided graph. Enzyme Y shows a significant drop in activity below 20 °C.
Step 2
Enzyme Z could be an intracellular human enzyme.
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Answer
Enzyme Z exhibits activity at higher temperatures, suggesting it is more likely to function in specific cellular environments but lacks direct support from the graphs.
Step 3
At pH 3 and a temperature of 37 °C, the active site of enzyme W binds well with its substrate.
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Answer
At pH 3 and 37 °C, enzyme W demonstrates optimal activity, indicating that its active site is effectively binding to the substrate.
Step 4
At pH 3 and a temperature of 37 °C, enzyme X functions at its optimum.
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Answer
The graph indicates that enzyme X has reduced activity at this combination of pH and temperature, implying that it does not function at its optimum under these conditions.
