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Kyle Hodnett

on 7 October 2013

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Transcript of Enzymes

Essential Questions
How does our body breakdown organic macromolecules?
a substance that causes a chemical reaction to happen more quickly and is not changed by the reaction
Biological catalysts that are made out of proteins
names ends in -ase.

How enzymes work
Enzymes speed up the rate of a reaction
Enzymes change substrates to products
The enzyme doesn't change and can be reused over and over again
Examples of enzymes


found in saliva
Amylase found in seeds
Lock and Key model of enzyme activity
Each enzyme only works on a specific substrate
breaks down proteins
Adding substrate only increases enzyme activity to a point.
Enzymes work best
at an optimal temperature
Enzymes work best
at an optimal pH
Different organisms have enzymes adapted for their environment
Within an organism, enzymes are adapted to their environment
Outside the optimal range,
enzymes denature
(stop being functional)
Enzyme activity in different environments
Essential Question:
How does the environment influence enzyme activity?
Full transcript