Question

1. according to the graph, which statement below is true? (1 point)

graph: relative rate of enzyme activity (y-axis) vs temperature (°c) (x-axis: 0,10,20,30,40,50,60,70); curve rises then falls
options:

• this enzyme works best at 10 degrees celsius
• this enzyme works equally well at all temperatures.
• this enzyme works best at middle 40 degrees celsius
• this enzyme works best at 60 degrees celsius

Explanation:

The graph shows enzyme activity vs temperature. The peak (highest activity) is around 40°C. So "This enzyme works best at middle 40 degrees Celsius" is true. Other options: 10°C is not peak, activity isn't equal, 60°C is after peak (activity drops).

Answer:

This enzyme works best at middle 40 degrees Celsius