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Q 1/20
Score 0
ow do enzymes speed up chemical reaction?
30
Increasing deactivation energy
Increasing activation energy
Decreasing activation energy
Decreasing deactivation energy
Q 2/20
Score 0
Most enzymes work best at about 37°C, normal body temperature, and each one
30
helps speed up reactions by a factor of 2.
is usually specific to only one type of chemical reaction in the body.
serves as a catalyst for several kinds of reactions.
helps slow down reactions by a factor of 10
20 questions
Q.
ow do enzymes speed up chemical reaction?
1
30 sec
Q.
Most enzymes work best at about 37°C, normal body temperature, and each one
2
30 sec
Q.
Enzymes provide a site where reactants called substrates can be brought together in an enzyme-catalyzed reaction. The site is called the
3
60 sec
Q.
A change in pH can change the shape of a protein. How might a change in pH affect the function of an enzyme?
4
60 sec
Q.
A lock and key is sometimes used as a model to promote understanding of enzymes. Which characteristic of enzymes or their action is best illustrated by this model?
5
60 sec
Q.
Which of the following conclusions can be drawn from this graph?
6
60 sec
Q.
How does an enzyme's activity change with increasing concentration of substrate?
7
60 sec
Q.
Enzymes need certain environmental conditions in order to function properly. What happens when enzymes are heated to a high temperature?
8
60 sec
Q.
Which of these do NOT affect enzyme activity?
9
60 sec
Q.
Which of these is NOT true.
10
60 sec
Q.
Which of these is most likely an enzyme?
11
60 sec
Q.
Which is NOT true?
12
60 sec
Q.
What is another name for enzymes?
13
60 sec
Q.
What is the optimum temperature for most enzymes in humans
14
60 sec
Q.
What is the name for the mechanism of enzyme activity?
15
60 sec
Q.
What is broken down by the enzyme Amylase?
16
60 sec
Q.
What is the optimum pH of pepsin (found in the stomach gastric juice of humans)
17
60 sec
Q.
What are the enzymes called when they are at low temperature?
18
60 sec
Q.
This happens more often between an enzyme and its substrate when the temperature of a solution increases.
