2) Macromolecules, which perform a multitude of functions that are vital for life, exist in many different shapes and sizes. Which of the following statements about macromolecules is false?

The first statement "carbohydrates are constructed as aromatic rings and consists of C, H and O" is false. It is a true that they are made up of element carbon, oxygen and hydrogen but they are not constructed as aromatic rings. They are constructed as disaccharides or polysaccharides by joining several molecules of simple sugars such as glucose, lactose and galactose among others. Their main function is provision of energy in the body. On the other hand, aromatic rings are mostly found in nucleic acids such as DNA, ATP and RNA.