enzymes for KAP Flashcards
what is the lock and key theory
enzymes have a specific shaped active site which is complementary to the shape of the substrate
what is the product in the lock and key model
an enzyme-substrate
does the active site change shape once the product is released
no
what is the induced fit model
the substrate collides with the active site and the active site changes shape to fit the substrate
what is the product of the induced fit model
an enzyme-substrate complex
why does the induced fit model have a low activation energy
the shape change in the enzyme places a strain on the substrate lowering the activation energy
what happens once the product is released in the induced fit theory
active site returns to original shape
what is activation energy
the extra energy that is required to enable a reaction to occur
eg heat
what are enzymes
biological catalysts that are able to lower the activation energy of a reaction to allow it to proceed quicker at lower temps so that molecules can be broken down to form new ones
