biochemistry indicators. what is an indicator? indicator- chemical that produces a characteristics...
Post on 18-Dec-2015
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![Page 1: Biochemistry Indicators. What is an indicator? Indicator- chemical that produces a characteristics color when a particular substance is present Standards-](https://reader034.vdocuments.us/reader034/viewer/2022042717/56649d265503460f949fcc0b/html5/thumbnails/1.jpg)
Biochemistry Indicators
![Page 2: Biochemistry Indicators. What is an indicator? Indicator- chemical that produces a characteristics color when a particular substance is present Standards-](https://reader034.vdocuments.us/reader034/viewer/2022042717/56649d265503460f949fcc0b/html5/thumbnails/2.jpg)
What is an indicator?
• Indicator- chemical that produces a characteristics color when a particular substance is present
• Standards- results that provide you with a positive test
![Page 3: Biochemistry Indicators. What is an indicator? Indicator- chemical that produces a characteristics color when a particular substance is present Standards-](https://reader034.vdocuments.us/reader034/viewer/2022042717/56649d265503460f949fcc0b/html5/thumbnails/3.jpg)
Simple CarbohydrateBenedict’s Test
– Add a few drops of Benedict’s solution to what you are testing
– Put solution in boiling water for 2-3 minutes– Positive Result: Solution changes color- white, orange,
red
![Page 4: Biochemistry Indicators. What is an indicator? Indicator- chemical that produces a characteristics color when a particular substance is present Standards-](https://reader034.vdocuments.us/reader034/viewer/2022042717/56649d265503460f949fcc0b/html5/thumbnails/4.jpg)
Complex Carbohydrate
Iodine Test– Add a few drops of iodine to the solution you are
testing– Positive Result: Solution turns black
![Page 5: Biochemistry Indicators. What is an indicator? Indicator- chemical that produces a characteristics color when a particular substance is present Standards-](https://reader034.vdocuments.us/reader034/viewer/2022042717/56649d265503460f949fcc0b/html5/thumbnails/5.jpg)
Lipids
Transparency Test– Place a few drops of solution testing on a brown
paper bag– Positive Result: Transparent when held up to
light
![Page 6: Biochemistry Indicators. What is an indicator? Indicator- chemical that produces a characteristics color when a particular substance is present Standards-](https://reader034.vdocuments.us/reader034/viewer/2022042717/56649d265503460f949fcc0b/html5/thumbnails/6.jpg)
Protein
Biuret Test– Add a few drops of biuret solution to what you are
testing– Positive Result: Solution turns from blue to violet