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Enzyme Vocab

vocabulary for enzymes and metabolism

QuestionAnswer
metabolism term used to describe all of the chemical reactions that occur within an organism
energy the ability to move or change matter
activation energy the energy needed to start a chemical reaction
reactant starting material for chemical reaction
product newly formed substances
synthesis enzyme reacts with two substrates to build up one product
degredation enzyme reacts with single substrate breaking down into two products
anabolic building reaction
catabolic break down reaction
enzyme catalysts that lower activation energy needed to start a chemical reaction so chemical reactions can occur at low temperatures. increase speed of chemical reactions
catalysts chemicals that reduce the activation energy of the reaction
exergonic release of energy
endogenic absorption of energy
substrate substance on which an enzyme acts during a chemical reaction
active site the region on the enzyme where the substrate binds
lock and key enzymes active site has a particular shape into which the substrate or substrates fit exactly
induced fit the active site in many enzymes is not exactly the same shape as the substrate but molds itself around the substrate as the enzyme substrate complex is formed
denatured bonds that maintain enzyme structure are broken
limiting factors any factor that directly affects a process if its quantity is changed
inhibitors slow down or stop enzyme reaction
competitive inhibitors block the active site and stop the substrate from getting in there
non-competitive inhibitors bind to enzyme (but not the active site) and cause active site to change shape
allosteric enzymes enzymes that accept non-competitive inhibitors
allosteric site where a signal molecule (inhibitor) can fit
irreversible inhibitors bind permanently to the enzyme rendering it useless. stop enzymatic activity permanently
feedback inhibition the end product of a metabolic pathway acts as a signal molecule and comes in contact with the first enzymes allosteric enzyme to shut down the pathway
Created by: edenbreslauer