AQA A-Level Biology Topic 1: Biological Molecules| Questions With 100% Correct Answers | Verified

What are monomers? - Monomers are *small units* which are the components of larger molecules. What are polymers? - Polymers are molecules made from *many monomers* joined together. What are examples of monomers? - *Monosaccharides, amino acids* and *nucleotides* What are examples of polymers? - *Polysaccharides, polypeptides* and *polynucleotides* What reaction allows two monomers to bond together? - A *condensation reaction* allows *two monomers* to be joined together by a chemical bond, *releasing a water molecule*. What reaction breaks the chemical bond between two molecules? - A *hydrolysis reaction* allows the chemical bond to break between two molecules and this happens due to the *addition of water*. What are carbohydrates? - Carbohydrates are molecules which consist only of *carbon, hydrogen and oxygen*. What is the small unit that makes up a carbohydrate. - Monosaccharides What is formed when two monosaccharides go through condensation reaction? - A *disaccharide* is formed. What is the special bond that is formed during the condensation reaction between two monosaccharides? - A *glycosidic bond* What is formed when many monosaccharides go through condensation reaction? - A *polysaccharide* is formed.