BioChem enzymes Flashcards
(33 cards)
proteins that act as catalysts, compounds that increase the rate of chemical reactions
enzymes
biological importance of enzymes
- synthesis
- oxidation
- hydrolysis
- tautomeric changes
organic substances which may exist free or loosely attached to the enzyme that helps assist in the activation of a chemical reaction
coenzyme
substance that convert the pro-enzyme or zymogen into the active enzymes
activators
combination of apoenzyme and coenzyme
holoenzyme
the protein part to which the co-enzyme attaches itself or is attached in the enzyme-coenzyme systems
apoenzyme
coenzyme that cannot be removed from its attachment with an enzyme using dialysis
prosthetic group
inorganic activators existing as a part of the enzyme molecule
metaloenzyme
inactive form of enzymes
zymogen
inhibits enzyme activity
anti-enzyme
substance acted upon by the enzyme and is converted into a new substance
substrate
substances derived from a transformed substrate
product
sequence of amino acids joined by peptide bonds
primary structure
conformation of the steric arrangement or conformation of the segments of polypeptide chain
secondary structure
arises from the interactions among side chains/groups of polymer chain
tertiary structure
folded structure of an enzyme
tertiary structure
refers to the relationship between subunits
quaternary structure
what are the classifications of enzymes
- oxidoreductases
- transferases
- hydrolases
- lyases
- isomerases
- ligases
2 forms of oxidoreductase
- reduction
- oxidation
addition of hydrogen to a double bond
reduction
removal of hydrogen to cleave a double bond
oxidation
move and interact groups of atoms from on molecule to another ; gives information about liver damage
transferases
splitting of molecules with water as a part of the reaction process
hydrolases
splitting molecules (lysis)
lyases