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Enzymes
- What are they?
- They are biological catalysts.
- Catalysts meaning substances that increase the
rate of chemical reactions without being used up.
- Lower activation energy
- Lower activation energy
- Catalysts meaning substances that increase the
rate of chemical reactions without being used up.
- They are proteins.
- They also fold up into complex 3D shapes and
allow smaller shapes to fit inside them.
- Shape is held by hydrogen bonds.
- Shape is held by hydrogen bonds.
- Made up from long chains of amino acids.
- They also fold up into complex 3D shapes and
allow smaller shapes to fit inside them.
- Usually denature at 45 degrees.
- Substrate molecules can fit into the active site of an enzyme
molecule.
- The reactant of the reaction is the substrate.
- Each active site is specific, no other substrate
can bind there
- The reactant of the reaction is the substrate.
- They are biological catalysts.
- Tempreature and Enzymes
- As the temperature increases so does the rate of
reaction
- Temperature
- Temperature
- But very high tempreature can lead to enzymes
denaturing
- Enzyme has denatured after
reaching optimum tempreature
- Enzyme has denatured after
reaching optimum tempreature
- pH
- Changes in the pH alters an enzymes' shape.
- Different enzymes work best at different pHs'
- The optimum pH for an enzyme depends on where it
normally works
- For Example, Intestinal enzymes have a pH
of about 7.5. Enzymes in the stomach have
an optimum of about 2.
- For Example, Intestinal enzymes have a pH
of about 7.5. Enzymes in the stomach have
an optimum of about 2.
- The optimum pH for an enzyme depends on where it
normally works
- Different enzymes work best at different pHs'
- As the temperature increases so does the rate of
reaction
- Keywords
- Deature.
- If a protein is denatured, its structure and function is altered
- If a protein is denatured, its structure and function is altered
- Optimum Temperature
- The best temperature for the maximum rate of
reaction.
- The best temperature for the maximum rate of
reaction.
- Protein
- Organic compounds made up of amino acids. One of
the three main food groups, protein is needed for
growth and repair
- Organic compounds made up of amino acids. One of
the three main food groups, protein is needed for
growth and repair
- pH
- Scale of acidity/alkalinity (pH below 7 - acidic)(pH
above 7 - alkaline)
- Scale of acidity/alkalinity (pH below 7 - acidic)(pH
above 7 - alkaline)
- Deature.
Medienanhänge
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