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enzymes catalysts - World of Teaching

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Catalysts
speed up the rate of the reaction.
lowers the energy input required for a
chemical reaction to happen
remains unchanged at the end of the
reaction
skool
Enzymes
 Enzymes are Biological catalysts
Enzymes control chemical reactions
that take place in the cytoplasm.
http://programs.northlandcollege.edu/biology/Biology1111/animations/enz
yme.html
Catalase in an example of an enzyme
made by living cells
Catalase
 The enzyme catalase breaks down
the waste substance hydrogen
peroxide into water and oxygen.
Hydrogen peroxide
(substrate)
catalase
(enzyme)
oxygen +water
(products)
Degradation reactions
animation
Synthesis Reaction
es
Active site
Degradation reactions
Starch
Maltose
Enzyme activity
Temperature and pH affect the activity
of an enzyme.
Optimum Condition
Enzymes function best or are most active
in specific conditions known as optimum
conditions.
Degradation reaction
Substrate Enzyme
Product
Memory
Hydrogen
peroxide
Starch
Catalase Oxygen and
water
Amylase Maltose
HPCOW
Maltose
Maltase
Glucose
Protein
Pepsin
Peptides
Peptides
Protease Amino acids
Fats
Lipase
Fatty Acids
and Glycerol
Synthesis reaction
Glucose-1phosphate
Starch
Properties of enzymes
Speed up reactions.
Made of protein.
Are specific.
Not used up during the reaction.
Require optimum conditions at which
they work best.
At high temperature they become
denatured
Lock and Key
пЃ¬
http://www.lewport.wnyric.org/jwanamaker/
animations/Enzyme%20activity.html
Synthesis reactions
phosphorylase
Glucose-1-phosphate
Starch
(Substrate)
(enzyme) (product)
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