Testing for biological molecules

What is the collective term for fats and oil

• Lipase

• Lipids

• Carbohydrates

• Glycerol

Click all of the elements found in carbohydrates (e.g. Starch, Glucose)

• Carbon

• Hydrogen

• Oxygen

• Sulphur

• Nitrogen

Click all of the elements found in lipids

• Carbon

• Hydrogen

• Oxygen

• Sulphur

• Nitrogen

Which of these are known as "macromolecules" (large molecules)

• fatty acids

• glycerol

• protein

• lipids

• carbohydrates

Amino acids are the monomers of which macromolecules

• Proteins

• Lipids

• Carbohydrates

• Fibres

Which is the correct test for Glucose

• Biuret Test

• Benedict's Test

• Iodine Solution Test

• Emulsion Test

What colour change would you expect for a positive Biuret test

• Orange to Blue/Black

• Blue to Brick Red

• Blue to Purple/Lilac

• White Cloudy Emulsion

Which is the only test that requires the solution to be heated in a water bath at 80^oC

• Emulsion Test

• Iodine Test

• Biuret Test

• Benedict's Test

The Emulsion Test requires the sample to be shaken with a mixture of water and .....................

Select all examples of simple carbohydrates

• glycogen

• glucose

• glycerol

• starch