Questions and Answers
Enzymes
1.
Substance that speeds up the rate of a chemical reaction
catalyst
2.
A substance produced in a chemical reaction
Product
3.
Large organic compounds that enzymes are made from
protein
4.
A change in the shape of a protein (such as an enzyme) that can be caused by changes in temperature or pH (among other things).
Denature
5.
Reactant of an enzyme-catalyzed reaction:
substrate
9.
Temperature at which an enzyme works the best
optimal temperature
10.
A substance that slows down or stops a chemical reaction
inhibitor
11.
Three factors that affect enzyme activity:
pH, temparature, concentration
12.
Specific part of an enzyme where a substrate fits:
Active site
13.
The minimum amount of energy required to start a chemical reaction
activation energy
14.
Without the presence of enzymes, the reactions necessary to sustain life would require .... in order to occur.
15.
With what 3 letters do enzymes typically end?
-ase
16.
With what 3 letters do substrates typically end?
-ose
17.
Based on the graph, what is the optimal temperature for this enzyme?
30°C
18.
Which of these is NOT true?
Enzymes can only be used once in a chemical reaction
19.
The pH at which an enzyme is most efficient is called the .... pH of an enzyme
20.
Enzymes speed up reaction rates by changing...
activation energy
21.
The current model of enzyme action is referred to as the
Induced Fit Model