Enzymatic Reaction Rate: Temperature, pH, Enzyme Concentration, are from Education.ti.com) Inhibitor Impacts (the first three graphs

Human Anatomy & Physiology (11th Edition)
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Author:Elaine N. Marieb, Katja N. Hoehn
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Chapter1: The Human Body: An Orientation
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Enzymatic Reaction Rate: Temperature, pH, Enzyme Concentration,
Inhibitor Impacts (the first three graphs are from Education.ti.com)
1) Temperature:
Enzyme Activity vs. Temperature
0.030
0.025
0 020
0015
0.010 e
0.005
0.000
10
20
30
40
50
60
Temperature (C)
These are results of an experiment where separate experimental samples were subjected to
various temperatures (appropriate controls were included). The impact of temperature on
enzymatic rate of reaction is shown in the graph above. Answer the following questions:
What is the optimal temperature?
Which is the least effective temperature?
What might account for the result at the temperature selected? That is, what might be
happening at the molecular level? Provide a plausible explanation.
What do you propose would be the impact on reaction rate at temperatures below zero?
What is a plausible explanation for what is occurring at temperatures below zero?
Rate (%s)
Transcribed Image Text:Enzymatic Reaction Rate: Temperature, pH, Enzyme Concentration, Inhibitor Impacts (the first three graphs are from Education.ti.com) 1) Temperature: Enzyme Activity vs. Temperature 0.030 0.025 0 020 0015 0.010 e 0.005 0.000 10 20 30 40 50 60 Temperature (C) These are results of an experiment where separate experimental samples were subjected to various temperatures (appropriate controls were included). The impact of temperature on enzymatic rate of reaction is shown in the graph above. Answer the following questions: What is the optimal temperature? Which is the least effective temperature? What might account for the result at the temperature selected? That is, what might be happening at the molecular level? Provide a plausible explanation. What do you propose would be the impact on reaction rate at temperatures below zero? What is a plausible explanation for what is occurring at temperatures below zero? Rate (%s)
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