← Biology (0610)
Q1 / 5
Factors affecting enzymes
Higher
2 marks
Sketch the expected graph of enzyme activity vs temperature for a human enzyme (describe the shape).
A
Bell-shaped: rises to a peak at ~37°C, then drops sharply above 40°C due to denaturation
B
Straight line — rate increases continuously with temperature
C
Flat line — temperature has no effect on human enzymes
D
U-shaped — rate is highest at 0°C and 80°C
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