Enzymes

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Proteins, Catalysts, And Enzymes

protein molecules r v imptnt in ur body

protein molecule made up of amino acids

diff arrangements give diff proteins

proteins carry out many diff functions in ur body - they act as: structural components such as muscles & tendons; hormones such as insulin; antibodies; catalysts in the form of enzymes

we control rates of chemical reactions all the time

sometimes we use special chems called catalysts to speed up reactions 4 us

a catalysts speeds up reaction, but isn't used up in it - u can use catalyst over & over again

in ur body, chem reactions rates r controlled by enzymes

these r biological catalysts tht speed up reactions w/i ur body

enzymes r large protein molecules

long chains of amino acids r folded 2 produce a molecule w/ a spec shape

this spec shape allows other molecules (substrates) 2 fit in2 the enzyme protein

we call this the active site

the shape of the enzyme is vital 4 how it works

enzymes r involved in: building large molecules out of small ones; changing 1 molecule in2 another; breaking down large molecules in2 smaller 1s

enzymes don't change reaction in any way - they just make it hppn faster

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