Two experiments were done with an enzyme from humans. In the first experiment, X, the temperature was kept constant at $37^b0\text{C}$. In the second experiment, the temperature was raised from $37^b0\text{C}$ to $80^b0\text{C}$. Every other factor remained unchanged. Which graph represents the results?
Biology 9700 · AS & A Level · Factors that affect enzyme action