Transcript Document 7839751

1. What does the
tubing represent?
Cell
membrane
2. What is inside
the tubing?
Starch & glucose
3. What did
we add to
make the
liquid outside
the “cell”
amber
colored?
Starch indicator
(iodine)
4. Why does
the inside of
the “cell” turn
purple or
black?
High s.i.conc.
Low s.i. conc.
Starch indicator
diffused into the
tubing
5. How do we
know that
starch did not
move from the
inside to the
outside?
No color
change
outside
6. How can
we find out if
glucose
moved into
the beaker?
?
Glucose
(high
conc.)
Do a glucose
indicator test
using the fluid
in the beaker
7. After
placing 10
drops of the
amber
solution into a
test tube,
what do we
add to it?
Glucose indicator
8. After adding
the glucose
indicator
solution (blue)
what do we do
with the test
tube?
Heat it
9. If there is
glucose in the
solution, what
will happen to
the blue color
after heating
the tube for 2
minutes?
The color changes
10. The blue
color changed
to orange. This
means that
what substance
is in the test
tube?
glucose
starch
glucose
C6H12O6
11. Glucose indicator solution was
added to these test tubes, and
then the tubes were heated.
Which will change color?
Were you right?