Test for molecules Flashcards
1
Q
Test for starch
A
Add iodine result should be dark blue
2
Q
Test for reducing sugars
A
Benedictus reagent heated in a water bath should produce brick red colour
3
Q
Test for non reducing sugars
A
- do benerdicts reagent
- use a dilute base
- do the benerdicts test again now should be positive
4
Q
Test for proteins
A
Biuret solution should change from blue to lilac
5
Q
Test for lipids
A
Add ethanol and shake milky white precipitate if present