Enzymes
- Created by: chelsey866
- Created on: 07-03-14 18:46
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- Enzymes
- ENZYMES are CATALYSTS
- Living things have tons of chemical reactions going inside them all the time
- They produce enzymes that speed up the chemical reactions
- Enzymes are biological catalysts
- All enzymes are proteins
- Proteins are made up of chains of amino acids
- These are chains are folded into a specific shape. This specific shape allows the enzyme to do its job
- Proteins are made up of chains of amino acids
- As well as catalysts, proteins act as:
- Structural parts of tissues e.g. muscles
- Hormones
- Antibodies
- ENZYMES HAVE SPECIAL SHAPES
- Chemical reactions usually involve things either being split apart or joined together
- Every enzyme has a specific shape that fits onto the substance involves in a reaction
- Enzymes are really picky- they usually only catalyse one reaction
- This is because, for the enzyme to work, the substance has to fit it's special shape. If the substance doesn't match the enzyme's shape, then the reaction won't be catalysed
- a CATALYST is a substance which INCREASES the speed of a reaction, without being CHANGED or USED UP in the reaction
- ENZYMES are CATALYSTS
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