BIOLOGY - Digestive System and Digestive Enzymes

Proteins, Catylists and Enzymes

• Enzymes have a specifc shape to only fit with its substrate (part it needs to connect with)
• - The substrate binds to the active site

Once the substrate is bound the the active site of the enzyme it can be:

• - broken down
• - built up into a larger molocule
• - changed into another substance

• Enzymes are made of protein
• The enzyme does not react with the substrate. It speeds up the reaction (- substrate being the reactant

The conditions the effect enymes are:

• - temperature (really cold/really hot) e.g. will denature above 40 degrees and work slower at lower temperatures (under 20 degrees)
• -pH (acids and bases…