Enzyme Kinetics Flashcards Preview

Life Sciences - BS12002 > Enzyme Kinetics > Flashcards

Flashcards in Enzyme Kinetics Deck (7)
Loading flashcards...
1

What is the definition of a half life?

the time taken for the concentration of a reactant to reach half of its original value.

2

Explain competitive inhibition.

when a molecule or an ion can fit into the active site on an enzyme but remains there unreacted

3

What is a cofactor?

a molecule or an ion needed for an enzymes full catalytic activity to be available.

4

What is the Michaelis Constant?

the concentration of a substrate that give 50% of the maximum rate.

5

What is induced fit?

When either the enzyme, the substrate, or both change shape when they bind.

6

What is a first order reaction?

the reaction rate is directly proportional to the concentration of reactants
e.g. as the concentration increases, the rate of reaction increases.

7

What is a zero order reaction?

the reaction rate is constant, regardless of the concentration of reactants present.