Test for molecules Flashcards

1
Q

Test for starch

A

Add iodine result should be dark blue

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2
Q

Test for reducing sugars

A

Benedictus reagent heated in a water bath should produce brick red colour

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3
Q

Test for non reducing sugars

A
  • do benerdicts reagent
  • use a dilute base
  • do the benerdicts test again now should be positive
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4
Q

Test for proteins

A

Biuret solution should change from blue to lilac

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5
Q

Test for lipids

A

Add ethanol and shake milky white precipitate if present

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