Large molecules are synthesized from smaller basic units

Question 1

Formation of glycogen

Answer 1

Glycogen is a highly compact molecule consisting of chains of glucose units

Question 2

Formation of polypeptides and proteins from amino acids

Answer 2

Protein molecule is build up from simpler compounds (Amino acids)
When two amino acids join with one another, there is removal of one molecule of water. (Peptide bond)
If three or more amino acids are linked by peptide bonds, a polypeptide is formed

Question 3

Formation of lipids from glycerol and fatty acids

Answer 3

Fat molecules is made up of four molecules joined together

• Glycerol
• Attached to the glycerol are three long molecules (Fatty acid)