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Paper 1
practicles
amylase and pH
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Created by
Connie Prime
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Cards (6)
step 1:
add 2ml of
starch
solution and 2ml of
pH buffer
solution to a beaker in a bath of water at
30'C
step 2:
use a
pipette
to add a drop of
iodine
to each well of the spotting tile
step 3:
add
2ml
of
amylase
solution and start the timer
step 4:
every
10
to
20
seconds take a sample from the solution using a
glass rod
and add it to the tile
step
5
:
when the
sample
doesnt change (black / blue) stop the
timer
and record
data
in a
table
step 6:
repeat for all different
pH
solutions