Question

1. according to the graph to the right, in which ph range (acidic, basic or neutral) do both enzymes show some activity? explain how you know.
2. the graph to the right shows that this enzyme works the best at what temperature?

why does the enzyme activity decrease on the right side of the graph?
at what temperatures does the enzyme denature? explain how you know.

Explanation:

Step1: Analyze enzyme - temperature graph

Enzyme activity peaks and then drops. Denaturation occurs when activity sharply falls.

Step2: Identify denaturation point

From the graph, denaturation starts around 35 - 40°C as activity rapidly decreases.

Step3: Analyze enzyme - pH graph

Gastric protease works in acidic pH (around 2 - 4), intestinal protease in basic pH (around 8 - 10).

Answer:

1. Gastric protease in acidic, intestinal protease in basic.
2. Around 35 - 40°C as activity drops sharply.
3. Activity decreases on right - side of graph due to denaturation as temp exceeds optimal range.