Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Biochemistry: Module 2 > Enzyme: Kinetics > Flashcards

Enzyme: Kinetics Flashcards

1
Q

It lists the initial chemical species present and the new chemical species formed

A

Balanced chemical equation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

It is used to describe reactions in living cells where the product of reaction are immediately consumed by subsequent enzyme catalyzed reaction

A

Unidirectional arrows

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Describes both the direction in which a chemical reaction will tend to proceed and the concentration of reactant and products that will be present in equilibrium

A

Gibbs free energy change

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

_____ of the free energy change determines how far the reaction will proceed

A

Sign and Magnitude

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

G is independent of the _____ of the reaction and therefore provide no information concerning ____

A

Mechanism , rate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

The natural and favorable tendency of process is to proceed from an area of

A

High energy to an area of low energy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Used to predict the direction of a reaction at a constant temperature Nd pressure

A

Standard free energy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Net loss of energy

A

Exergonic reaction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Net gain of energy

A

Endergonic reaction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Reaction in equilibrium

A

Equal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Spontaneous reaction

A

Exergonic reaction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Non spontaneous reaction

A

Enedergonic reaction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Forward reaction is equal to backward reaction

A

Reaction in equilibrium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Field of biochemistry concerned with the quantitative measurement of the rates of enzyme catalyzed reaction

A

Enzyme kinetics

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Constant reaction and product

A

1 molar

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Constant temperature

A

25C or 298 K

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Constant temperature

A

1 atmosphere

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

It states that Standard free energy of all consecutive reactions in a pathway are additive

A

Coupling reaction or hess law

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

For 2 molecules to react, they must

A

Approach a bond forming distance

Possess enough kinetic energy to surpass energy barrier

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Factors affecting collision

A

Substrate concentration
Temperature
pH
Inhibitors

21
Q

It relates reaction rate to substrate concentration

A

Michaelis menten equation

22
Q

Michaelis menten equation have _____ curve

A

Hyperbolic curve

23
Q

Tell you how fast the reaction is

A

Vi or velocity

24
Q

Michaelis constant is equal to

A

Half the maximal velocity

25
Q

Maximal number of substrate molecules converted to product per unit time

A

Vmax

26
Q

Rate is not affected by substrate

A

Above Km

27
Q

Above Km

A

Zero kinetics

28
Q

First order kinetics

A

Below Km

29
Q

Rate directly proportional to substrate

A

Below Km

30
Q

Reciprocal of michaelis menten eq.

A

Lineweaver burke plot

31
Q

Used to calculate Km and Vmax

A

Lineweaver burke plot

32
Q

It determines the mechanism of action of enzyme inhibitors

A

Lineweaver burke plot

33
Q

Lineweaver burke plot is also called

A

Double reciprocals

34
Q

It used for multimeric enzymes

A

Hill equation

35
Q

Equation which show cooperativity

A

Hill equation

36
Q

Increasing kinetic energy of molecules will…

A

Increase rapidity of motion

37
Q

What are the factors affecting reaction rate?

A

Temperature
pH
Reactant concentration
Inhibitors

38
Q

Any substance that diminishes the velocity of an enzyme catalyzed reaction

A

Enzyme inhibitor

39
Q

Type of enzyme inhibition that bind to covalent bond

A

Irreversible

40
Q

Type inhibition that competes on the same active site

A

Competitive inhibition

41
Q

Inhibitor that binds on another site different from active site

A

Non competitive inhibition

42
Q

Enzyme + substrate

A

Enzyme substrate complex

43
Q

Competitive reversal

A

Increase of substrate

44
Q

Non competitive reversal

A

Increase of enzyme

45
Q

Km in competitive inhibition

A

Increases

46
Q

Km in non competitive inhibition

A

The same since they don’t interfere with binding

47
Q

Vmax of competitive inhibition

A

Not changed

48
Q

Vmax of non competitive inhibition

A

Vmax lowered

Biochemistry: Module 2 (5 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions