Biological Molecules (Cambridge O Level Biology)

The table below shows the elements and basic units used by cells to make large biological molecules. 

	basic units	elements	large molecule
A	amino acid	carbon, hydrogen, oxygen, nitrogen	protein
B	glycerol	carbon, hydrogen, oxygen, nitrogen	fats
C	glycerol	carbon, hydrogen, nitrogen	fats
D	amino acid	carbon, hydrogen, oxygen	DNA

Which row of the table is correct?

Large biological molecules are made from smaller molecules. 

Which row shows the correct molecules?

	starch	protein	lipid	DNA
A	fatty acids and glycerol	nucleotides	glucose	amino acids
B	glucose	fatty acids and glycerol	nucleotides	amino acids
C	nucleotides	amino acids	fatty acids and glycerol	glucose
D	glucose	amino acids	fatty acids and glycerol	nucleotides