BRAINCAKEEffect of Temperature on Enzyme Action
As the temperature is increased the kinetic energy of the molecules increases and the molecules move faster and collide more often and with more energy.
There are more frequent and more effective collisions so more enzyme-substrate complexes are formed in a given time.
At the optimum temperature, the rate of enzyme-substrate complex formation is a maximum.
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Key terms in this lesson
- hydrogen bond
- A weak electrostatic attraction between a slightly positive hydrogen atom on one polar molecule and a slightly negative atom, such as oxygen or nitrogen, on another.
- active site
- The region of an enzyme, formed by the tertiary structure, with a shape complementary to its substrate, where the substrate binds.
- enzyme-substrate complex
- The temporary structure formed when a substrate binds to the active site of an enzyme.