Proteins 0.0 / 5 ? BiologyProteinASAQA Created by: callumsmith69Created on: 30-09-14 20:47 What is an amino acid? basic monomer units which can combine to make a polymer called a peptide. 1 of 15 Give the names of the groups on an amino acid. Amine group, carboxyl group, hydrogen group and R group. 2 of 15 Name the contents of the Amine Group. 1 Nitrogen and 2 Hydrogen. 3 of 15 Name the contents of the carboxyl group. 1 carbon 2 oxygen (1 double bond and one single bond). 4 of 15 What is the element in the centre of all amino acids? Carbon. 5 of 15 What is the process called when 2 amino acid monomers join together? Polymerisation. 6 of 15 When two amino acids join, what groups join together and what happens? The Carboxyl group and amine group join together in a condensation reaction leaving water. 7 of 15 Describe the primary structure of proteins. A long chain of the 20 different amino acids called a polypeptide chain. 8 of 15 What would happen if you changed one of the amino acids in a primary structure and why? The protein would not form in to the same shape and therefore will not be able to carry out its function. 9 of 15 What charge does the -NH group have? 1+ 10 of 15 What charge does the 0-C=O group have? 1- 11 of 15 What kind of weak bonds from on the amine and carboxyl group? Hydrogen bonds (weak bonds) 12 of 15 Describe a secondary structure. As a result of the hydrogen bonds from the charges on each side of the amino acid, thhe chain starts to twist into a 3d shape. 13 of 15 Describe a tertiary structure. The secondary structure shape is twisted and folded even more to give a complex and unique 3D shape of each protein. 14 of 15 Name the three bonds, in order of strongest to weakest, which help maintain the shape of a tertiary structure. Disulfide bond, ionic bonds and hydrogen bonds. 15 of 15
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