Fill in the blanks

Question

• Three factors affect enzyme activity:
– _____________________________________
• Enzymes from different organisms tend to work best at different optimum temperatures.
– ____________________
• The pH of a solution describes how________________ or ____________ the solution is.
• Most enzymes function in a very narrow pH range, which varies depending on the
enzyme and its job.
– _______________________________
• The more substrate molecules available, the ____________ the reaction rate, until
saturation

Answer 1

Here’s a possible way to fill in the blanks:

• Three factors affect enzyme activity: – Temperature, pH, and substrate concentration.

• Enzymes from different organisms tend to work best at different optimum temperatures. – This is often related to the environment in which the organism lives.

• The pH of a solution describes how acidic or basic the solution is.

• Most enzymes function in a very narrow pH range, which varies depending on the enzyme and its job. – This is crucial because extreme pH levels can denature the enzyme.

• The more substrate molecules available, the faster the reaction rate, until saturation.