lab M4 L14 Flashcards
1
Q
IKI (Lugol’s/iodine) result is blue
A
positive result
starch present
2
Q
IKI (lugol’s/iodine) result is orange
A
negative result
starch not present
3
Q
Benedict’s test result is opaque and green/bright orange-red/deep brick-red
A
positive result
sugars present
4
Q
Benedict’s test result is blue
A
negative result
sugars not present
5
Q
Biuret test result is blue-violet or lavender-pink
A
positive result
proteins/peptides/amino acids present
6
Q
Biuret test result is light blue
A
negative result
proteins/peptides/amino acids not present
