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Enzymes7

biology

QuestionAnswer
What are enzymes? substances that cause chemical reactions to occur faster
How do enzymes work? by decreasing the amount of energy needed to activate the chemical reaction.
What are most enzymes? Proteins
How are enzymes produced? by a cell’s ribosomes.
Why do ribosomes produce specific enzymes? to act on specific substances, called substrates. For example, the enzyme catalase assists in the breakdown of hydrogen peroxide into water and oxygen. In this case, hydrogen peroxide is catalase’s substrate.
What is RNA polymerase? an enzyme that is essential to the process of transcription.
What determines how an enzyme works? the shape
active sites match folds in the substrate’s surface
What is key to how an enzyme functions? an enzymes shape.
What happens if an enzymes shape is changed? the enzyme may not function as well or at all.
What can affect the shape of an enzyme’s active sites.? Changes in temperature and pH
RNA polymerase is an enzyme that is essential to the process of transcription
Many of the chemical reactions that occur in cells are catalyzed by? enzymes
What are enzymes examples of? proteins
What is enzyme activity regulated by? temp. of reaction
What are enzymes made from? amino acids
What do enzymes lower for chemical reactions? activation energy
What catalyses reactions? enzyme carbonic anhydrase
What causes reactions to happen? enzymes shape
Created by: ericreyes
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