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Transcript
Chemistry 100 Name_________________________ Worksheet 16 1. What is the name of the individual units that make up the chain of polypeptides? 2. What is the name of the bond between these individual units? 3. What is the term used for a molecule that can act as an acid and a base? 4. For the following state if it best describes a fibrous protein or a globular protein Description Fibrous or Globular or both? insoluble in water cannot move from one place to another enzymes, insulin antibodies hair, muscle structural proteins long linear chains have a primary structure have a quaternary structure held together by peptide bonds can contain secondary structure attracted to water 5. What is produced when a polypeptide chain is hydrolyzed? 6. For the following description state which structure (or structures) best relates: primary 1o , secondary 2o ,tertiary 3 o, quaternary 4 o. You may use more than one. Description Alpha helix Sequence of amino acids found in fibrous protein found in enzymes maintained by hydrogen bonds broken down only by hydrolysis (not denaturing) found in silk found only in globular proteins broken down by denaturing found in muscle made of subunits of tertiary structure Structure 7. What are four parts of an amino acid? 8. In the space below, draw two simple amino acids hooked together by a peptide bond. Circle the peptide bond. 9. For the following state if it best describes denaturing or hydrolysis Description losing the shape of the protein happens when meat or eggs are cooked loss of solubility breaking the amide linkage happens when a strong acid is added loss of biological activity when the chain is cut into individual amino acids breaks hydrogen bonds unfolds the protein destroys primary structure breaking of the polypeptide chain Denaturing or hydrolysis Complete the following table by adding the function or type of protein Type Function hormone transports hemoglobin in blood attacks viruses and other foreign proteins found in hair bone cartilage Storage proteins catalysts that hydrolyze sucrose, lipids and peptide bonds found in muscle
