What statement best explains why enzymes are specific?
Enzymes are specific because different enzymes have differently shaped active sites. The shape of the active site of an enzyme is complementary to the shape of its specific substrate . This means they are the correct shapes to fit together. Temperature has an effect on enzyme activity.
What determines the specificity of an enzyme quizlet?
Enzymes increase the rate of exergonic reactions by lowering the activation energy of the reaction. What determines the specificity of an enzyme for its substrate? For a substrate to bind to the active site of an enzyme it must fit in the active site and be chemically attracted to it.
Which of the following statements best explains an enzymes specificity for a particular substrate molecule?
Based on the model, which of the following statements best explains an enzyme’s specificity for a particular substrate molecule? A molecule with negative charges interacts with positively charged side chains in the enzyme’s active site.
What does high specificity mean in enzymes?
Introduction to Enzymes A few enzymes exhibit absolute specificity; that is, they will catalyze only one particular reaction. Other enzymes will be specific for a particular type of chemical bond or functional group.
Which of the following best describes enzymes?
It is the total of all the chemical reactions in an organism. Which of the following best describes the function of enzymes? Enzymes lower the activation energy level of a chemical reaction, thus making it so the reaction will proceed.
Which feature of an enzyme is most responsible for its substrate specificity?
Coenzymes are small nonprotein molecules that are associated to some enzymes. Many coenzymes are related to vitamins. Coenzymes and the protein portion with catalytic activity or apoenzyme form the holoenzyme. The apoenzyme is responsible for the enzyme’s substrate specificity.
What does it mean for an enzyme to be substrate specific quizlet?
Active site: Region on the surface of an enzyme to which substrates bind and which catalyses a chemical reaction involving the substrates. This results in enzymes being able to catalyze only certain reactions as only a small number of substrates fit in the active site. This is called enzyme-substrate specificity.
What is enzyme-substrate specificity?
Definition. A feature of enzyme activity with regard to the kind of substrate reacting with an enzyme to yield a product. Supplement. In an enzyme activity, the substrate must bind with the enzyme to become a catalyst of a chemical reaction.
Which part of the enzyme allows substrate specificity?
active site
active site: The active site is the part of an enzyme to which substrates bind and where a reaction is catalyzed.