The rate of reaction for three enzymes was calculated at dif

The rate of reaction for three enzymes was calculated at different temperatures, and the rate of reaction for has additional enzymes was calculated as different pHs, this data was graphed above. Assume the y-axis share the same scale. Which of the enzymes would work in the stomach? 4 and 5 2 3 1 and 4 5 Enzymes can significantly increases the rate of a chemical reaction by _____.

Solution

All enzymes show their optimal activities at specific pH and temperatures ranges e.g. human stomach has a pH of 1.5-2 that is maintained due to secretion of hydrochloric acid or HCl by parietal cells of the stomach. Also, enzymes work optimally between 37°C and 42°C and lead maximum digestion at this temperature range.

Therefore, the correct option is 1 and 4.