If nucleic acid is present in the epidermis of the onion, the red-spot nucleus can be seen clearly when it is stained with aceto-orcein solution. The last experiment is to test the existence of proteins in cooked egg white. If protein is present in cooked egg white, the transparent solution of sodium hydroxide and cooked egg white will turn into purple when it is mixed with copper sulfate solution. Therefore, all macromolecules exist in all given samples. Introduction Macromolecules are large organic molecules which can be categorized into four major classes. They are carbohydrates, lipids, nucleic acids and proteins. Carbohydrates are the most abundant of these four macromolecules. Its basic units are called monosaccharide such as glucose, galactose and fructose. Monosaccharide can be linked together to form disaccharide and polysaccharide such as starch and cellulose. There are many functions of carbohydrates such as storage and transport of energy (starch) and structural component
If nucleic acid is present in the epidermis of the onion, the red-spot nucleus can be seen clearly when it is stained with aceto-orcein solution. The last experiment is to test the existence of proteins in cooked egg white. If protein is present in cooked egg white, the transparent solution of sodium hydroxide and cooked egg white will turn into purple when it is mixed with copper sulfate solution. Therefore, all macromolecules exist in all given samples. Introduction Macromolecules are large organic molecules which can be categorized into four major classes. They are carbohydrates, lipids, nucleic acids and proteins. Carbohydrates are the most abundant of these four macromolecules. Its basic units are called monosaccharide such as glucose, galactose and fructose. Monosaccharide can be linked together to form disaccharide and polysaccharide such as starch and cellulose. There are many functions of carbohydrates such as storage and transport of energy (starch) and structural component