1.8: Factors Affecting Enzyme Action
Enzyme activity is influenced by temperature, pH, enzyme concentration, and substrate concentration. These factors affect the rate of enzyme-substrate complex formation, with optimal conditions enhancing the reaction rate and extreme conditions (like high temperature or pH changes) potentially denaturing the enzyme or limiting its effectiveness.
effect of temperature
rise in temp increases the kinetic energy of molecules
more frequent collisions between enzyme and substrate
more ES complexes formed in a given amount of time
faster rate of reaction
however if temp rises too much then enzymes become denatured
Key Terms
effect of temperature
rise in temp increases the kinetic energy of molecules
more frequent collisions between enzyme and substrate
...
effect of pH
change in pH alters the charges on the amino acids that make up the active site o
substrate and enzyme no longer have a comp...
effect of enzyme concentration on rate of reaction
as long is there is an excess of substrate, an increase in enzyme concentration leads to a proportional increase in the rate of reaction
effect of substrate concentration on rate of reaction
if enzyme concentration is fixed than an increase in substrate concentration will increase the rate of reaction because the available subst...
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| Term | Definition |
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effect of temperature |
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effect of pH |
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effect of enzyme concentration on rate of reaction |
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effect of substrate concentration on rate of reaction |
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