2. 3. 4. electrostatic interactions True or False? All intermolecular forces of attraction is a result of an attraction between opposite charges/poles. What type of interaction occurs between the molecule in black and water? 5. 1. Which of the following helps predict the chemical stability of an element? • electrons 8. • protons • valence electrons 9. proton:neutron ratio What type of interaction forces proteins to fold on itself when placed in a polar solvent? . hydrophobic interactions • hydrogen bonding • covalent bonding H₂OH-O H₂OH-O H₂O H₂O 04-0 H₂OH-O dipole-dipole interaction London dispersion forces hydrogen bonding H₂OH-O • • dipole-induced dipole interaction Will the molecule in black be dissolved in water? (i.e. like dissolves like) OH₂ H₂O H₂O OH₂ H₂O O O H₂OH-O 4-0 Yes ● • • No . Maybe 6. True or False? Human beings are composed of 60-75% water. This is important to enable interactions between molecule because water provides the medium for this. 7. What is the main interaction that stabilizes the lipid bilayer shown below? . H. H OH₂ London dispersion forces ion-induced dipole interactions ion-ion interactions OH₂ OH₂ • . ionic bonding • dipole-dipole interactions What type of bond enables the polymerization of substances? • intermolecular forces of attraction • covalent bonding ionic bonding hydrophobic interactions What type of bond enables the polymerization of substances? intermolecular forces of attraction covalent bonding • dynamic . static templated Biological Den hydrophobic interactions. 10. One of the first things that has to happen for a cell to exist in the early earth is for a cell membrane to form. A cell membrane distinguishes a cell from the environment. It is composed of phospholipids which have a polar head and a nonpolar tail. In an environment composed of water, why will these phospholipids have a tendency to assemble into a circular bilayer with the polar heads directed outward? to protect their hydrophobic components to initiate the creation of a living cell to expose their hydrophilic heads to force the selectivity of the membrane 11. What type/s of self-assembly can be used to describe the self-assembly of a cell membrane? (Chose all that apply.) Lumen of Cell 12. https://www.youtube.com/watch?v=NgD9yHSJ291 In the TED video previously shown, Paul Rothemund writes code to instruct DNA to fold to a certain shape. What type of self-assembly is shown here? • templated • biological No answer text provided. none of the choices 13. True or False? Self-assembly is the ability of compounds to form ordered structures with the help of human intervention