SETUP TABLE, part 2

assays #9-17 (effects of heat, organic solvent, and metabolic inhibitors on reaction rate)

 

 

Assay #

mL

0.01 M

guaiacol

 

mL

water

mL

0.1 % (v/v)

H2O2

 

Treatment*

mL

enzyme

extract

 

time

(seconds)

 

9

 

2.0

 

2.0

 

0.8

100 C, 60 seconds

(See part IV instructions)

 

0.2

 

 

10

 

2.0

 

1.0

 

0.8

1.0 mL ethanol

(See part V instructions)

 

0.2

 

#11-13 are a set: effect of an irreversible inhibitor.  See part VI  instructions.

 

11

 

0.1

 

3.3

 

1.4

 

none

 

0.2

 

 

12

 

0.1

 

3.1

 

1.4

 

0.2 mL NaF

 

0.2

 

 

13

 

0.2

 

3.0

 

1.4

 

0.2 mL NaF

 

0.2

 

#14-17 are a set: effect of a reversible (and competitive) inhibitor.  See part VII instructions.

 

14

 

0.1

 

3.3

 

1.4

 

none

 

0.2

 

 

15

 

0.1

 

3.2

 

1.4

 

0.1 mL catechol

 

0.2

 

 

16

 

0.2

 

3.1

 

1.4

 

0.1 mL catechol

 

0.2

 

 

17

 

0.0

 

3.3

 

1.4

 

0.1 mL catechol

 

0.2

 

* Ethanol is 95 % (v/v).  NaF stock is 10-1 M.  Catechol stock is 5 X 10-3 M.