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Flashcards in Kinetics Deck (13):
1

What is rate?

How fast reactions are being consumed or how fast products are formed

2

What is reactant rate determined by?

How frequent reactant molecules collide, orientation of colliding molecules, and energy

3

When does transition state usually occur?

At the energy max

4

Are kinetic and thermodynamic factors related?

No

5

What does a catalyst do?

Accelerates the reaction by lowering activation energy

6

Do catalyst effect equilibrium?

No

7

What order is the rate for a unimolecular step?

First order

8

What order is the rate for the bimolecular step?

Second order

9

What will adding a catalyst or increasing temperature do to the rate constant?

Increase the rate constant

10

What is kcat?

Number of substrate molecules converted to product per unit time. Limiting rate at saturation

11

Effects of uncompetitive inhibition

Only binds to enzyme substrate complex. Lowers Vmax. LWB shows parallel lines. As inhibitor is increased lines shift to the left

12

Effects of mixed inhibition

Binds to enzyme or enzyme substrate complex. Vmax goes down. Km goes up. LWB shows intersection

13

Effects of competitive inhibitor

Vmax has no change but km will