Grease Spot Test
used to detect lipids
used to test sugars
used to test starch
used to test proteins
How do you know if there are lipids using the grease spot paper test?
the paper will feel greasy and there is a wet spot after everything is done drying
How do you know if there are reducing sugars using the Benedict's test?
the precipitate may be yellow, orange, or red, according to the reducing sugar concentration
How do you know if there is starch using the Iodine test?
the precipitate will turn a dark blue, purple, or black color
How do you know if there are proteins using the Biuret test?
when reacted it will turn light violet or a lavender color