posted by kadian .
give a liable explanation for food test.... include test for starch,, simple sugar,,, fat and protein ,,,, please include chemistry and chemical equations... thanks ... due tomorrow
Are you sure you mean liable?
yes just conclude something miss sue like fo example the chemical change in each test
A sample containing starch will cause an iodine solution to turn dark blue.
A sample containing fats will leave a greasy stain on paper.
Simple sugars can be tested with Benedict or with Fehling solutions. The blue color of the test solution will change from yellow to red.
Proteins will give a positive "biuret" test.
For detailed instructions and reactions involved you need to do some searching using the information above.
The use of energy to move molecules across a membrane defines