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Enzymes k

QuestionAnswer
substances that cause chemical reactions to occur faster. enzymes
enzymes work by decreasing the amount of energy needed to activate the chemical reaction
enzymes are a type of catalyst
ribosomes produce specific enzymes to act on specific substances called substrates
folds make pockets called active sites
an enzymes shape is key to how an enzyme functions
changes in temperature or pH can affect the shape of an enzymes active sites
many of the chemical reactions that occurs in cells are catalyzed by enzymes
most enzymes are proteins
enzymes are produced by a cell's ribosomes
enzymes are also important for synthesis of new molecules
the shape of an enzyme determines how it works
most enzymes have a surface with one or more deep folds
the active sites match folds in the substrates surface
a particular enzyme fits against its substrate like two adjacent puzzle pieces
if shape is changed the enzyme won't function well or at all
enzymes are only able to work properly in a certain temperature and pH range
RNA polymerase is an enzyme that is essential to the process of transcription
molecules of mRNA are transcribed by RNA polymerases
what molecule does the enzyme break down a protein
what two factors affect an enzyme's operation the most? temperature and pH
what would happen to a person who had a shortage of lactose? the person couldn't fully digest dairy products
all cells do not contain the same type of enzymes
without enzymes chemical reactions would not occur quickly enough to sustain life
more energy is absorbed by reactions without an enzyme
Created by: kareyhoward
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