positive and negative controls

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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

<p>Blue black</p>
5
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What is the colour of a negative control for starch?

Yellow

<p>Yellow</p>
6
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What is the colour of a positive control for sugar?

Yellow to orange to red

<p>Yellow to orange to red</p>
7
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What is the colour of a negative control for sugar?

Blue

<p>Blue</p>
8
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What is the colour of a positive control for protein?

Purple

<p>Purple</p>
9
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What is the colour of a negative control for protein?

Light blue

<p>Light blue</p>