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What are enzymes? are substances that cause chemical reactions to occur faster
What do enzymes do? decreasing the amount of energy needed to activate the chemical reaction
What are enzymes also called? A catalysts
What are many of the cells catalyzed by? enzymes
Why are enzymes important? cells would not be able to perform metabolism quickly enough to support life.
What are most enzymes made of? proteins
What are enzymes produced by? enzymes are produced by a cell’s ribosomes.
What are substrates? specific enzymes to act on specific substances
What are enzymes also important for? Enzymes are also important for the synthesis of new molecules
Example of the importance of enzymes. For example, RNA polymerase is an enzyme that is essential to the process of transcription.
What does the shape of the enzyme determain? determines how it works
What are the folds in an enzyme? The folds make pockets, which are called active sites
What does the active site do? The active sites match folds in the substrate’s surface.
What is teh enzymes shape? An enzyme’s shape is key to how the enzyme functions.
What happens when an enzymes shape is changed? the enzyme may not function as well or at all.
What can affect the change of the active site in an enzyme? Changes in temperature and pH can affect the shape of an enzyme’s active sites.
When do enzymes work best? enzymes are only able to work properly in a certain temperature and pH range.
What are RNA polymerase is an enzyme that is essential to the process of transcription
Molecules of mRNA are..? transcribed by RNA polymerases and later new protein molecules are synthesized based on the instructions coded in the mRNA.
What are factors of enzyme? pH and tempurature
What happens to an enzyme when the active site isnt the same shape as the catalyst? the enzyme doesnt work
What is a nick-name for an enzyme? "work horse" of a cell
What is in an enzyme? Lactase
What does an enzyme breakdown? Lactose
What is it called when the active site combines with a substrait? Lock and Key
Created by: antonijaphillips