Enzyme Quiz/Test

E.M. Flood
Flashcards by E.M. Flood, updated more than 1 year ago More Less
E.M. Flood
Created by E.M. Flood about 1 year ago


Freshman/Biology/Unit 3/November 2018

Resource summary

Question Answer
Explain what a chemical reaction is. A process when a set of chemicals changes/transforms into another
Elements/compounds that enter a chemical reaction are _____. Those produced by a chemical reaction are _____. reactants; products
What is activation energy? Give an example. Energy that is involved with chemical reactions regardless of whether the overall chemical reaction releases or absorbs energy; burning paper with a match
What is a catalyst? A substances that speeds up the rate of a chemical reaction by lowering a reaction activation's energy
What is an enzyme? A protein that acts as biological catalysts
What do enzymes do in our bodies? They speed up chemical reactions that take place in cells by lowering activation energy
Explain how an enzyme works during a chemical reaction An enzyme allows reactants to bond by providing a site where these reactants can be brought together to react. A site reduces the energy needed for a reaction.
What are substrates? Reactants of enzyme-catalyzed reactions
What would happen to the enzymatic reaction if the enzyme lost its shape? The enzyme would not work the same way and might become useless altogether
What are factors that regulate enzyme activity? Temperature, pH, regulatory molecules
Define a catalyst a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
Define an active site the specific region of an enzyme where a substrate binds and catalysis takes place or where chemical reaction occurs.
What is an enzyme-substrate complex? The intermediate formed when a substrate molecule interacts with the active site of an enzyme
What is activation energy? the energy which must be provided with potential reactants to result in a chemical reaction
What is an exergonic reaction? What's an example? When energy is released; combustion
What's an endergonic reaction? What's an example? Energy is absorbed; protein synthesis
What's the difference between the two reactions? Endergonic builds up, exergonic breaks down
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