GCSE U3L1 Biological Molecules

What is a biological molecule?

• A carbon containing compound found in living organisms

• A nitrogen containing compound found in fertilisers

• A gas that causes acid rain

• A cell organelle

Which monomer makes up carbohydrates?

• Simple sugar

• Glucose

• Protein

• Glycerol

Which of these is an example of a simple sugar?

• Glucose

• Amino acid

• Glycerol

• Cellulose

Which monomer are proteins made from?

• Amino acids

• Glucose

• Glycerol

• Fatty acids

Which chemical is used to test for the presence of lipids?

• Ethanol

• Biuret

• Benedicts

• Iodine

Which type of biological molecule is cellulose?

• Carbohydrate

• Protein

• Lipid

Which biological molecule can be tested for using biuret solution?

• Protein

• Starch

• Glucose

• Lipid

Which of the following biochemical tests must be heated?

• Benedict's - simple sugar

• Biuret - protein

• Ethanol - lipids

• Iodine - starch

Which biological molecule is made up of amino acids?

• Protein

• Starch

• Glucose

• Lipid

Which monomer makes up lipids?

• Simple sugar

• Glucose

• Fatty acids

• Glycerol