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Biology
B2 : Organisation
Rate of reaction RQ
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Created by
Jainisha Karadia
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Cards (8)
Equipment
Starch
solution
Amylase
solution
Iodine
solution
Buffered solutions with a range of
pH
Spotting tiles
Buffered pH
and
starch
solutions should reach
30
degrees(C) in the water bath
one drop of
iodine
solution into each depression of the spotting tile
add
2 cm
^
3
starch
to the
amylase
and
buffer solution
then
start
the
timer
The iodine should turn
black
/
blue
remove a
drop
every
10 seconds
and place it on the
spotting tile
with the
iodine
rinse
the
glass rod
before removing the next
drop
repeat the process with
solutions
of other
pHs