The Modal Intestine
- Created by: Katy **
- Created on: 31-12-13 10:37
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- Modal Intestine
- Step 1.
- put water in boiling tubes
- test water for starch & glucose
- Step 2.
- place starch in visking tube
- add amylase
- wash outside
- Step 3.
- place starch without enzyme in other visking tube
- Step 4.
- place both visking tubes into separate boiling tubes
- start stopwatch
- Step 5.
- test water around visking tube for starch & glucose
- every 2 mins
- test water around visking tube for starch & glucose
- Step 6.
- test water one last time
- after 10 mins
- test solutions in visking tubes for starch & glucose
- test water one last time
- Observations
- starch stays in visking tube
- too big to go throught semi-permeable membrane
- amylase digest starch ? glucose
- glucose in visking tube
- diffuse out of visking tube
- starch stays in visking tube
- Step 1.
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