1.1 AQA A-Level Biology with complete solutions

What are particular groups of chemicals that are found in living organisms called? biological molecules What is the study of biological molecules called? molecular biology 00:01 01:36 Give 3 types of bonding in which atoms may combine with each other? covalent bonding, ionic bonding, hydrogen bonding Are ionic bonds stronger or weaker than covalent bonds? weaker What molecules can be linked together to form long chains? monomers What are long chains of monomer sub-units called? polymers What is the process by which polymers are formed called? polymerisation What are the monomers of a polymer chain usually based on? carbon Give 2 examples of polymers which are industrially produced. polythene and polyesters Give 3 polymers which are made naturally by living organisms. polysaccharides, polypeptides, polynucleotides What is the basic sub-unit of a polysaccharide called? monosaccharide What is a monosaccharide? (sugar) a single sugar Give an example of a monosaccharide. glucose