enzymes
what are enzymes ?
enzymes are a type of protien that work as a catalyst. some help break down a large substance into smaller molecules. and other help with synthesis .
whats protien ?
a long chain of amino acids forming a protien molecule
whats synthesis
producing a substance from more than one substrate
whats an active site
the enzyme region that binds to substances during a reaction
what does it mean to denature
to destroy the characteristics properties affecting the active site for example changing shape so the substrate cant fit anymore
whats startch
a long chain of glucose forming a starch molecule
types of enzymes
amalyse
starch
catalase
DNA /polymerase
where is amylase found and what reaction is catalyst
saliva and small intestine
breaking down starch into smaller sugons
where is starch found and what reaction is catalyst
plants
synthesis of starch from glucose molecules
where is catalase found and what reaction is catalyst
most cells especially liver cells
breaking down hydrogen preoxide made in cells into oxyegen
where is DNA/polymerase found and what reaction is catalyst
the nucleus
synthesis of DNA from its mannes A,T,C,G
explain why enzymes as catalyst in digestion is important for life (3M)
Digestive enzyme catalyst the breakdown of large food molecules
So that they are small enough to cross all membranes
To supply the body with nutrients and sources of energy
3 examples that might affect an enzyme to denature ?
ph
temperture
enzyme or substrate concentration
how does the lock and key theory correlate to the substrate and active site
lock and key model is when a key can can complement only one lock like the substrate being complementry for the active site and if the active site denatures and changes shape the substrate cant fit anymore like changing a lock for a key to not fit
whats a product
the substances thats are made by the enzyme after the reaction