Biological Molecules Biological Proteins: Amino acids, peptide bonds, and protein structures by David Warmflash, MD, Nathan H Lents, Ph.D. Reading Quiz Teach with this 1. Proteins are polymers of _____. amino acids disulfide bridges glucose peptide bonds 2. A bond between amino acids is called a(n) _____ bond. acid hydrogen ionic peptide 3. Disulfide bridges in proteins help hold them together. true false 4. To separate individual amino acids in a protein, scientists can: Add a basic solution (pH greater than 7) to break the peptide bonds. Add an acidic solution (pH less than 7) to break the peptide bonds. Pass X-rays through the various proteins to break the peptide bonds. Use electrophoresis to break the peptide bonds. 5. What research techniques did Frederick Sanger use to identify the proteins and amino acids in insulin? Electrophoresis and alpha-sheets Chromatography and alpha-sheets Electrophoresis and chromatography None of the above 6. An amino acid that is water soluble is called _____. a beta-sheet an alpha helix hydrophobic hydrophilic 7. All proteins have a Quaternary structure. false true 8. The human body contains an estimated _____ proteins that form based on the way _____ amino acids can combine. 20; 100,000 100,000; 20 100; 20 100,000; 70 Score Quiz
