Enzymes are biological catalysts which speed up reactions. They are specific for their substrate. The lock and key hypothesis models this. Enzymes are denatured at extremes of temperature and pH.
What affect does extremely high pH have on enzymes?
What does the term optimum mean for enzyme temperature?
The lowest temperature at which the enzyme works
The temperature which gives the highest enzyme activity
The highest temperature before denaturing occurs
What type of enzymes break down carbohydrates?
What type of enzymes break down fats?
What type of enzymes break down proteins?
What type of enzyme is amylase?
What is the test for reducing sugars?
Which of these is used to test for proteins?
Which of these statements about enzymes is true?
They work best at low pH
Temperature does not affect their activity
They can be reused
What is the correct calculation for the rate of an enzyme reaction?
Amount of substrate used / time taken
Amount of substrate used + time taken
Amount of substrate used x time taken