A group of students conducts research on enzyme activity and collects the data shown in the graphs. Which statement is supported by the evidence in the graphs? a The enzyme is very active at approximately 42°C and within a pH range of 2 to 6. b The enzyme works best in a pH range of 6 to 8 and at a temperature of approximately 37° C. c The enzyme functions well at a temperature of 35°C and would be active at any pH value. d The enzyme's activity is greatest at pH 7 and would not be affected by a change in temperature.

1 answer

To determine which statement is supported by the evidence in the graphs, we would need to analyze the specific data presented in the graphs regarding enzyme activity in relation to temperature and pH. However, since the graphs are not provided in your question, I can help you evaluate each statement based on general principles of enzyme activity:

a. The enzyme is very active at approximately 42°C and within a pH range of 2 to 6.

  • This would suggest that the enzyme has a high activity at a high temperature and a fairly acidic pH range. If the graphs show high activity at this temperature and pH, this statement could be true.

b. The enzyme works best in a pH range of 6 to 8 and at a temperature of approximately 37°C.

  • This suggests optimal conditions for the enzyme's performance based on physiological conditions, which is common for many human enzymes. If the graphs demonstrate the highest activity around this temperature and pH, then this statement is likely accurate.

c. The enzyme functions well at a temperature of 35°C and would be active at any pH value.

  • This statement suggests universal activity across all pH levels. If the graphs indicate varying activity at different pH levels, this statement would be unsupported.

d. The enzyme's activity is greatest at pH 7 and would not be affected by a change in temperature.

  • This implies a pH optimum that is neutral and insensitivity to temperature changes. Most enzymes, however, do show sensitivity to temperature. If the graphs indicate a decline in activity with temperature change, this statement could also be wrong.

Without the specific data from the graphs to confirm which conditions correlate with maximum enzyme activity, it would be difficult to definitively choose the correct statement. Please review the graphs for the specific pH and temperature data to select the appropriate conclusion based on the presented evidence.