3.1 Enzyme Structure Flashcards
What do enzymes do?
Biological catalysis- speed up biochemical reactions
What are enzymes? What relationship does the structure have with the function?
proteins
tertiary shape- maintain for functionality
Active site
where substrate binds to
the molecules that interacts with the enzyme
also the R-group of the amino acid sequence
What are some characteristics of the active site?
Has unique shape and size; CNA have chemical changes or not
physical & chemical properties of the substrate must be compatible however slight changes of the active site can occur in order to tightly bind with the substrate
What importance does the enzyme name have?
indicated the substrate or chemical involved (ends in -ase)
How do enzymes perform catalysis?
By lowering activation energy
What role does thermal energy have in breaking reactants?
Thermal energy causes molecules to collide forcefully and frequently
transition state
having enough energy for the bonds to break; however increase heat is not ideal to speed up biological mechanisms- protein denatures- thus enzymes are used
How is enzyme structure related to enzyme function?
The shape and charge gives specificity for the type of reaction it does
What happens to an enzyme after the completion of a reaction?
The enzyme is reused.
WHat determines whether a substrate can interact with an enzyme?
The substrate must have chemical and physical properties that is compatible with the enzyme.
What are some oral enzymes?
Lipase and Amylase
What is a stomach enzyme?
Pepsin- protein
What are some small intestine enzymes?
Erepsin(mixture of enzymes that digests peptides and peptones into amino acids , Maltase, Lactase, and Sucrase
Function of pancreas
secretes enzymes as liquid
