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enzymes
Question | Answer |
---|---|
what is the function of an enzyme? | to lower the necessary activation energy level (temp) for chemical reactions to increase reaction rate |
How do enzymes lower the activation energy? | binding to substrate (compound/molecule involved in reaction) |
Why is an enzyme a catalyst? | enzymes can be reused, chemical reactions do not alter them |
What is enzyme-substrate specificity? | enzymes are designed to fit only substrates they are meant to control; lock and key |
What is an enzyme made of? | a protein |
How do enzymes bind to substrates? | @ active site, help form bonds (compounds) by holding substrates adjacent to each other @ active site |
What factors affect enzymes? | pH level, temperature, cofactors, inhibition |
How are enzymes affected by pH level? | works best at 6-8, lower pH inhibits |
How are enzymes affected by temperature? | works best at 35-40 C, higher temp inhibits |
What are cofactors? | nonprotein catalysts/substrates. some reactions require, others helped by cofactors. can attach to enzyme. |