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WorksheetsEnzyme
Total questions: 20
Worksheet time: 4mins
The most common enzyme on the planet
HCl
Rubisco
Catalase
How do enzymes speed up the chemical reactions?
Increasing activation energy
Decreasing activation energy
Decreasing deactivation energy
What is a substance called if it speeds up a chemical reaction?
catalyst
cofactor
coenzyme
Each enzyme only has 1 substrate that will fit its active site. What is this called?
reusability
denaturation
specificity
With what 3 letters do enzymes typically end?
-ese
-ase
-ose
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 increase 5.0 to 9.0
Based on the graph, what is the optimal temperature for this enzyme?
15oC
30oC
40oC
In the diagram, what is the letter A?
product
substrate
enzyme-substrate complex
Incorrect
Enzymes are...
carbohydrates
lipids
proteins
What happens when enzymes are heated to a high temperature?
The enzymes' amino acid sequence changes.
The shapes of the enzyme are altered denature
The enzymes remain the same
Not all enzymes have the same optimum temperature.
True
False
Humans have enzymes with the optimum temperature at or about normal body temperature.
True
False
A change in pH from the optimum value alters the bonding patterns. As the pH is brought back to the optimum for that enzyme, the active site may reappear.
True
False
More substrate is made available the rate of reaction stays the same.
True
False
A molecule that sufficiently resembles the substrate in shape may compete to occupy the active site is called a Non-competitive inhibitor.
True
False
Enzymes in your body probably work best at which of the following temperatures>
25oC
98oC
37oC
210oC
