Question 1 The Following Statements About Beta Sheets Are True Except Parallel Sheets Are More Extended Than Alpha Hel 1 (46.78 KiB) Viewed 15 times
Question 1 The Following Statements About Beta Sheets Are True Except Parallel Sheets Are More Extended Than Alpha Hel 2 (35.05 KiB) Viewed 15 times
Question 1 The following statements about beta sheets are true, except: Parallel sheets are more extended than alpha helices Parallel sheets' hydrogen bonds are weaker than antiparallel sheets They are made by hydrogens bonds between R groups Antiparallel sheets have linear hydrogen bonds Parallel sheets run in the same direction Question 2 1 pts 1 pts The Biuret and Lowry methods for determining protein concentration are more accurate than the Bradford method. Why? The Bradford method measures the amount of basic and aromatic amino acids, which can vary a lot from protein to protein The Biuret and Lowry methods rely on metal coordination, which gives a stronger color change than the Bradford method The Biuret and Lowry methods don't need a standard curve to be accurate Metal coordination in the Biuret and Lowry methods is very tight and can give very sensitive results The Bradford method is sensitive to reducing agents and detergents Question 3 Protein purification techniques are based on ALL of these properties, except: Solubility of the protein Charge of the protein Specific binding affinity of the protein Viscosity of the protein Size of protein Question 4 What does SDS, sodium dodecyl sulfate, do to proteins? It allows proteins to maintain their tertiary structure It stains the proteins and permits viewing of the bands as they run through the gel It allows proteins to be sorted according to their isoelectric point It separates proteins of the same molecular weight into different bands O It breaks up hydrogen bonds and applies a negative charge per amino acid to the protein 1 pts 1 pts
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