Question

a bacterium was discovered in several hot springs. the temperature of the springs can range from 50 to 80 degrees celsius. scientists investigate an enzyme from this bacterium. they set up the data table show to record their results. what is a reasonable hypothesis for this study? activation energy will be lowest in tubes 2 and 3. the enzymes shape will adapt to each temperature setting. the enzymes reaction rate will be greatest from 0 to 5 minutes. the optimum reaction rate of this enzyme will be seen in tubes 4 or 5.

Explanation:

Step1: Analyze enzyme - temperature relationship

Enzymes have an optimal temperature range. Bacteria from hot springs (temperature 50 - 80°C) likely have enzymes adapted to higher temperatures.

Step2: Evaluate each option

• Activation energy: Not directly related to temperature - enzyme activity in this context.
• Enzyme's shape adaptation: Enzymes from hot - spring bacteria would have shapes (tertiary structure) that are stable and functional at higher temperatures.
• Reaction rate from 0 - 5 minutes: Irrelevant as the focus is on temperature - enzyme activity.
• Optimum in tubes 4 or 5 (60 - 80°C): Aligns with the bacteria's natural hot - spring habitat (50 - 80°C), suggesting enzyme adaptation.

Answer:

The optimum reaction rate of this enzyme will be seen in tubes 4 or 5.