positive and negative controls
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Last updated 9:13 PM on 12/10/25
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9 Terms
1
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What reagent is used when testing for starch?
Lugol’s Iodine
2
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What reagent is used when testing for sugar?
Benedict’s Reagent
3
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What reagent is used when testing for protein?
Biuret Reagent
4
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What is the colour of a positive control for starch?
Blue black
5
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What is the colour of a negative control for starch?
Yellow
6
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What is the colour of a positive control for sugar?
Yellow to orange to red
7
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What is the colour of a negative control for sugar?
Blue
8
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What is the colour of a positive control for protein?
Purple
9
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What is the colour of a negative control for protein?
Light blue
Note 
Flashcards (56)