WorksheetsEnzyme Practice
Total questions: 10
Worksheet time: 46mins
Enzymes are capable of increasing the rate of a chemical reaction within a living cell. Enzymes accomplish this through which of the following means?
reducing the number of products
reducing the activation energy
increasing the temperature of the cell
increasing the concentration of reactants
The graph shows how enzymes affect reactions in cells. Which statement best summarizes the information shown in the graph?
Enzymes increase the energy of the reactants.
Enzymes decrease the energy level of the products.
Enzyme decrease the activation energy of the reaction.
Enzymes reverse the direction of the reaction.
Which of the following conclusions can be drawn from this graph?
The optimum pH of the enzyme is 6.6.
The optimum pH of the enzyme is 5.8
The enzyme’s activity increases as pH increases 5.0 to 9.0
The enzyme’s activity is greater around pH of 8.0 .
Which statement best describes the enzyme represented in the graphs below?
This enzyme works best at a temperature of 35°C and a pH of 8
This enzyme works best at a temperature of 50°C and a pH of 12
Temperature and pH have no influence on the activity of this enzyme
This enzyme works best at a temperature above 50°C and a pH above 12
Which of these is NOT true.
Enzymes can denature (change shape) when the temperature gets too high.
Enzymes can only be used once in a chemical reaction.
Enzymes can denature when the pH changes.
Enzymes speed up chemical reactions.
When the temperature or pH causes the enzyme to change so it no longer works, this is called ....
Allosteric inhibition
Substrate concentration
Denaturation
Active Site transference
Which substrate would this enzyme catalyze?
Δ
σ
∅
Π
Letter D is the .....
active site
enzyme
substrate
products
Letter C is the.....
active site
enzymes
substrate
products
Letter B is the.....
active site
enzyme
substrate
products
