IGCSE Biomolecules Revision

Which of following molecules is NOT a sugar ?

• Sucrose

• Glucose

• Glycogen

• Maltose

Which biological molecule provides insulation ?

• Protein

• Glycogen

• Starch

• Lipid

How many different types of amino acid are there ?

Type the number.

Which chemical elements are found in lipid molecules ?

• Carbon, hydrogen & oxygen

• Carbon, nitrogen & oxygen

• Nitrogen, hydrogen & oxygen

• Nitrogen, carbon & hydrogen

Which biological molecule contains glycerol ?

• Carbohydrate

• Protein

• Lipid

• Starch

Which biological molecule contains nitrogen ?

• Glucose

• Haemoglobin

• Lipid

• Glycogen

Which biological molecule is stored in chloroplasts ?

• Maltose

• Cellulose

• Starch

• Glycogen

How many fatty acids are in a lipid molecule ?

How many glycerol are there in a lipid molecule ?

Which of the following are proteins ?

• Amylase & starch

• Insulin & glucose

• Antibodies & amylase

• Glucose & glycogen