Question

15.what three factors affect enzymes? a.________ b.______ c.________ 16.what is the optimal temperature for the enzyme shown below? 17.at high temperatures, the enzyme denatures. what does this mean? 18.what is the optimal ph for the enzyme shown below?

Explanation:

1. Enzymes are affected by temperature, pH, and substrate - concentration. Temperature can increase or decrease reaction rates until denaturation, pH can alter the enzyme's structure, and substrate - concentration affects the frequency of enzyme - substrate interactions.
2. The optimal temperature is the temperature at which the rate of the enzyme - catalyzed reaction is highest. From the graph, it appears to be around 40°C.
3. Denaturation means the enzyme loses its three - dimensional structure, which is necessary for its function. High temperatures break the weak bonds (such as hydrogen bonds) that maintain the enzyme's shape.
4. The optimal pH is the pH at which the rate of the enzyme - catalyzed reaction is highest. From the graph, it appears to be around 8.

Answer:

1. a. Temperature

b. pH
c. Substrate - concentration

1. 40°C
2. The enzyme loses its three - dimensional structure and its function.
3. 8