enzymes Flashcards
what is an enzyme?
proteins that help speed up metabolism, or the chemical reactions in our bodies
what is a chemical reaction
breaking and creating of bonds between diffrent substances
what is activation energy
energy needed too start chemical reaction
-ex. pushing a rock up hill for it to fall on its own down
what are reactants
substance CHANGED during chemical reaction
what is the product
what we get out of it
enzymes are _____ meaning they _________ reactions by reducing activation energy requiared to start the reaction
catalysts, speed up
what is the first step Enzymes create the right conditions for a reaction to occur
reactant ( called a substrate) binds to a special part of the enzyme called an ACTIVE SITE
what is the 2nd step Enzymes create the right conditions for a reaction to occur
reaction takes place ( making or breaking bond)
what is the 3rd step Enzymes create the right conditions for a reaction to occur
product realsed from the enzyme + reamins unchanged
T or F: enzymes have a unique structure that only fits 1 substance
true
- they fit toghter like a key and a locke
- enzyme shape is essintiol to its functiojn
what is denatruation
when the enviormental condtioions cause enzyme to lose its shape and no longer work.
what are the 4 ways to change rate of reaction
- temparture : will increase or decrease rate of reaction
- pH levels : how acidic or basic solution is
- reactant concentration : increase amount, rate of reaction increases
- catalysts : like enzyems speed up rate of reation