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Enzymes A
Enzymes A
18
Chemistry
Undergraduate 1
11/18/2008

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Cards

Term
What are biological catalysts?
Definition
Enzymes- most are protiens
Term
What do enzymes do?
Definition
Increase rate of reaction by a factor of 10^9 to 10^20
Term
How do enzymes make reaction faster?
Definition
Change reaction path, lowering activation energy
Term
List 4 things regarding enzyme specificity.
Definition
1. Substrate specific
2. Functional group specific
3. Stereospecific
4. Reaction specific
Term
What enzyme promotes hydrolysis?
Definition
Hydrolases
Term
What is the substrate of sucrase?
Definition
Sucrose
Term
What enzyme helps hydrolysis of beta 1,6 linkages?
Definition
Beta glucosidase
Term
What enzyme helps hydrolysis of alpha 1,4 linkage in starch?
Definition
alpha amylase
Term
What enzyme joins two molecules?
Definition
lygase
Term
What enzymes are active in isomerization reactions and transfer reactions?
Definition
Isomerase and transferase
Term
What enzyme is active in oxidation-reduction reactions?
Definition
oxidoreductase
Term
What is a substrate?
Definition
compound or compounds whose reaction an enzyme catalyzes
Term
What is the active site?
Definition
the specific portion of the enzyme to which a substrate binds during reaction
Term
What is a coenzyme?
Definition
a non-protein organic molecule that acts as a cofactor....vit B
Term
What is an Apoenzyme?
Definition
the protein part of an enzyme
Term
What is the cofactor/coenzyme for Malate dehydrogenase?
Definition
NAD+
Term
What is the cofactor/coenzyme for Succinate dehydrogenase?
Definition
FAD
Term
What is the cofactor/coenzyme for hexokinase?
Definition
MG2+
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