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Biology Cornell Notes: “Enzymes” DATE:
What does it mean to be “lactose intolerant?”
What is a catalyst?
How are the names of enzymes determined?
How do enzymes make chemical reactions more efficient?
What happens if the shape of an enzyme is changed?
Explain why chemical reactions need energy to start.
Give an example and explain how increasing the temperature changes an enzyme’s function.
What are some examples of cofactors and coenzymes?
How do they help an enzyme function?
What happens to the food that we eat? It breaks down into….
What is Lactose?
Lactose is a __________________________ found in _____________ products.
What is Lactose-intolerance?
They lack the enzyme ________________________
Remember: __________________ end in __________
__________________ end in __________
What are Enzymes?
Most enzymes are _________________________
Act as ______________ to speed up a __________________________ by helping molecules react with others faster
Are specific for what they will ____________________
End in __________
Usually named for the reaction they help:
Enzymes aren’t used up in reactions
_____________ again for the same reaction with other molecules
very little enzyme needed to help in _______________________
Reactants form Products
_____________ + ____________ = ___________________
It’s Shape that Matters!
____________ of enzyme allows substrate to fit
_______________________ for each specific reaction
How do Enzymes Work?
Enzymes work by weakening bonds which lowers _____________________________
Reactions _______ occur without the help of ______________, but not at the _____________ our body requires.
__________________ reduce the _________________ needed for a reaction to occur ____________________________)
It is like a ___________________ on the cost of the _________________
What Affects Enzyme Activity?
__________ temperatures cause enzymes to _______________
(unfold and lose shape)
__________ temperatures slow molecules down and _______ ________________ occur
Extreme ______________________ and _______ can change the enzyme ______________, rendering it __________________.
Changes in pH changes _______________
most human enzymes =
Cofactors, Coenzymes, and Inhibitors
________________ are needed for the substrate to bind.
Inhibitors __________________ the substrate from binding by either _________________ the active site or changing the ____________ of the active site.
___________ reaction in your body is _____________ by an ______________.
Enzymes are the ________________ of your body!