Noncovalent interactions between molecules found in cellular systems include the fol EXCEPT: dipole-dipole interactions disulfide linkages
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- Which of the following type structure contains all the three glycosphingolipids?a) B structureb) A structurec) O structured) AB structureThis type of noncovalent bond is responsible for clustering fatty acid tails of phospholipids in a micelle. a. Disulfide bonds b. Hydrogen bonds c. Hydrophobic interactions d. Ionic interactions e. van der Waals interactionsThe much-abused drug cocaine is an alkaloid. Alkaloids are noted for their bitter taste, an indication of their basic properties. Cocaine, C17H21O4N, is soluble in water to the extent of 0.17g/100mL solution, and a saturated solution has a pH = 10.08. What is the value of Kb for cocaine?
- A protein has a dissociation equilibrium constant equal to 4.0um. What is the concentration of free ligand when the fraction of bound sites is 0.7cis, cis-9,12-OCTAdecadiENoic acid Enumerate the number of carbons and unsaturations (double bonds) in this moleculeOlestra has been used in certain snack foods as an alternativeto fats and oils. Its structure consists of a sucrose molecule inwhich all free hydroxyl groups have formed esters with oleicacid (an 18-carbon monounsaturated fatty acid). Olestra molecules contain no calories because they are exceptionallylarge and cannot be digested. Draw the structure of olestra.Use R—COOH as an abbreviation for oleic acid.
- in dehydration reaction between phosphate (derived from phosphoric acid) and glycerol (a sugar alcohol) accompanied with the removal of a water molecule, what chemical bond holds them together in a phospholipid molecule? A. Ether Alcohol B. Thioester Bond C. Acid Anhydride/Phosphoanydride bond D. Ester BondThe dihedral or torsion angles of polypeptide backbone, the allowed values of which are summarized by the Ramachandran diagram, refer to rotation of the following pair of bonds. Cα-N and Cα-R C=O and Cα-N C-N and Cα-C Cα-C and Cα-N Cα-R and Cα-CWrite a sample chemical reaction of chymotrypsin in a complete balanced equation label the following properly: substrate/s, cosubstrate/s, and cofactor/s Show all the changes in the reacting components small molecules should be in their skeletal form large molecules could be shown as hybrid structures - reacting/interacting groups in skeletal form, the rest of the molecule as abbreviations/blocks/shapes
- The monomers of proteins are __________, and these are linked bypolar covalent bonds commonly referred to as _______________.a. nucleotides, peptide bondsb. amino acids, ester bondsc. hydroxyl groups, ester bondsd. amino acids, peptide bondse. monosaccharides, glycosidic linkagesLabel the N- & C termini Label ALL alpha -carbons (with an alpha) Label ALL peptide bonds(highlight or draw an X through these) Circle all AAresidues label which ones are nonpolar, polar,-acidic, & basic For each side chain, label/identifywhat types of R - group interactions it canparticipate in (H - bond, disulfide bond, ionic/electrostatic interactions, or hydrophobicinteractions.) Peptide StructureD raw the full structure of the following tetrapeptide . Label the N terminaland C terminal residues. Phe - Cys - Ser - Ile