enzymes Flashcards
what is the difference between a catabolic and anabolic reaction
anabolic is two smaller molecules joining together to make a larger molecule
catabolic is a larger molecule being broken down into a two smaller molecules
what is an enzyme and substrate called when they are joined together
enzyme substrate complex
explain the ‘lock and key’ hypothesis and why it relates to why enzymes are specific to substrates
an enzyme is specific to a substrate the same way a key is specific to a lock, if the enzyme doesn’t fit with a substrate the chemical reaction is unable to occur
why does temperature effect enzyme action
beyond 45-50 degrees enzymes structures change and become denatured. the shape of the enzyme is crucial for its functioning and if they are denatured an enzyme becomes inactive.
why does pH level effect enzyme action
each enzyme has a specific pH where it works at optimum level as they are very sensitive to pH
why do co-factors effect enzyme action
co-factors change the shape of the active site an enzyme can fit with a substrate for a reaction to occur
why does concentration effect enzyme action
the higher the concentration of an enzyme the faster the rate of reaction because there are more enzymes to influence reactions
