Enzyme Kinetics Flashcards
(11 cards)
1
Q
Enzymes biochemically are _____?
A
Proteins
2
Q
What is excepted from being a enzyme?
A
Ribozymes
3
Q
What is the function of enzymes?
A
To lower the activation energy of reactions.
4
Q
What enzymes cannot do?
A
- Alter the equilibrium constant
- Change the (free energy) ^G of a reaction
5
Q
Definition of Exergonic reactions
A
- Reactions with a -^G and spontaneously occur.
- may generate energy
6
Q
Definition of Endergonic Reactiions
A
- Reactions with +^G
- require energy input to occur
7
Q
How can temperature affect a reaction?
A
- It increases the rate of the reaction.
- But, if it is above a 102 Fahrenheit protein denatures
8
Q
What happens if the reactions temperature is below 98 Fahrenheit?
A
The reaction would slow down.
9
Q
What is the optimum pH for an enzyme in acid?
A
pH of 1.5-2.0
Ex: Pepsin in the stomach
10
Q
What is the optimum pH for enzyme thats neutral?
A
pH of 7.3 - 7.4
Ex: Carbonic anhydrase in RBC
11
Q
What is the optimum pH for a enzyme as basic?
A
pH of 8.0 - 9.0
Ex: Trypsin in he small intestines
