If you picked option 4, you are Correct! Amino acids with side chains that are oppositelyĬharged can form ionic bonds. 18) Which pair of amino acids below can form an ionic bond? Option 1 Option 2 Option 3 Option 4 Positive charged amino acids will be attracted If you selected option 1, you are correct. If the antigen on the surface of the bacterial cell has several negatively charged amino acids, which of the following amino acids would you expect to ind on the portion of the antibody that binds to the antigen? Option 4 30) Antibodies that enable our body to ight bacterial infections must bind to antigens on the surface of the bacterial cell. Does a dehydration synthesis or a hydrolysis reaction occur when the peptide bond (indicated by the arrow) forms between the two amino acids? Is water added or removed when this bond forms? dehydration added hydrolysis removed dehydration removed hydrolysis addedĬorrect! Peptide bonds are formed by a dehydration reaction, where water is removed. 6) In the following picture, two amino acids are joined together as a dipeptide. 5) What bond is indicated by the arrow in the diagram? Hydrogen bond Peptide bond Ionic bondĬorrect! The bond between the amino group and carboxyl group is called a peptideīond. Grabs onto a newly made protein and helps it reach its native (fully folded) state. A chaperone is a molecule in the cell that If you selected chaperone, you are correct. Which one of the following molecules, available in a cell, is likely to help a protein fold properly? Cysteine Glycine Chaperone Polymerase
34) In order to fulill their function, proteins must fold in proper, three-dimensional conformations. Water and in so doing they will cause aggregation (clumping up) of the tau protein. Hydrophobic amino acids like to hide from If you selected hydrophobic, you are correct. What kinds of amino acids are likely to drive the formation of these protein aggregates? Hydrophobic Hydrophilic Polar Cysteine
36) Alzheimer’s disease is caused by aggregation of the Amyloid beta peptide and tangle formation by the tau protein.