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Enzymes.

QuestionAnswer
What are enzymes? Proteins that act as catalyst in living things.
How do enzymes work? By decreasing the amount of energy needed to activate the chemical reaction.
What are substrates? Specific enzymes to act on specific substances.
What are active sites? Where the enzymes go.
What happens if the shape of an enzyme is changed? It will not function as well or at all.
What two things can affect the shape of an enzyme's active site? 1.Temperature 2. pH range
What is RNA polymerase? An enzyme that is essential to the process of transcription.
What is a chemical reaction? A process that changes one set of chemicals into another.
What happens to chemical bonds during chemical reactions? Some bonds are broken and other bonds are formed.
What is activation energy? The energy needed to get a reaction started.
how do energy changes affect whether a chemical reaction will happen? Chemical reactions that give off energy often happen on their own.
What is a catalyst? A substance that speeds up the rate of a chemical reaction.
What role do enzymes play in living things? Enzymes speed up chemical reactions that take place in cells.
What is the saying for an enzyme? "Lock and key"
Can enzymes control obesity? Yes.
What are the most important characteristics of enzymes? The production of needed molecules in a cell
What amount of catalyst is consumed in the reaction it catalyzes? Catalysts are not consumed in the reactions they catalyze.
What are reactants? The element or compounds the enter into a chemical reaction
What are products? The elements or compounds produced by a chemical reaction.
What are the enzyme and substrates held together by? Intermolecular forces.
If enzymes are not used during a chemical reaction, how do they speed up the rate of the reaction? By providing an active site.
What temperature does enzymes destroy? 45-50 Celsius
What is the optimum temp. for humans? 37 Celsius
What is the optimum temp. for plants? 25 Celsius
Created by: madisonblakley
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