Identification of Biological Molecules. AS Biology OCR

Questions on the identification of biological molecules. 

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  • Created by: Jade
  • Created on: 26-10-11 18:16
What is the name of reagent used for testing for a reducing sugar?
Benedict
1 of 7
In testing for a reducing sugar, what is a positive result?
Brick-red precipitate
2 of 7
In testing for a non-reducing sugar, what is a positive result?
Brick-red precipitate
3 of 7
When testing for starch you have to stain a molecule to see whether starch is present, but what is the name of reagent used within this method?
Iodine Solution
4 of 7
When testing for the presence of starch, what is a positive result?
A colour change from red/orange to blue-black
5 of 7
When testing for a protein, you have to add ___________ to a solution until a blue ring appears then shake.
Biuret Reagent
6 of 7
When testing for the presence of a protein, what is a positive result?
Colour change from blue to purple
7 of 7

Other cards in this set

Card 2

Front

In testing for a reducing sugar, what is a positive result?

Back

Brick-red precipitate

Card 3

Front

In testing for a non-reducing sugar, what is a positive result?

Back

Preview of the front of card 3

Card 4

Front

When testing for starch you have to stain a molecule to see whether starch is present, but what is the name of reagent used within this method?

Back

Preview of the front of card 4

Card 5

Front

When testing for the presence of starch, what is a positive result?

Back

Preview of the front of card 5
View more cards

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