front 1 What is Biochemistry? | back 1 It is the scientific study of the chemical processes and substances that occur within living organisms. It also relates to Structural Biology, Enzymology, and Metabolism |
front 2 What is the importance of water? | back 2 All biochemical processes rely on H2O. It is a Universal Solvent, participates in many biochemical reactions, high specific heat capacity, transports nutrients, hormones, and waste, contributes to 3D structures of proteins and nucleic acids, and acts as a reactant or product (catalysis). |
front 3 What are the properties of water? | back 3 It is polar with polar covalent bonds (uneven sharing), hydrogen bonding, and a universal solvent. 0 C melting/freezing point and 100 C boiling point. 1g/mL density and 1cal/g C heat capacity. 4.184J/g C. |
front 4 What does having a polar covalent bond mean? What does it create? | back 4 It means there is uneven sharing of electrons between Oxygen and Hydrogen. It creates a charge across the bond (Dipole). |
front 5 What is a hydrogen bond? | back 5 A relatively weak bond between the oxygen of one water to the hydrogen of another water molecule. |
front 6 What can the polarity of a molecule be? | back 6 -Nonpolar w/nonpolar bonds -Nonpolar w/polar bonds -Polar w/nonpolar bonds |
front 7 When a bond breaks it _________ energy. | back 7 Uses |
front 8 When a bond forms it ______ energy | back 8 Releases |
front 9 In a Hydrogen Bond, the H only attaches to ___, ___, and ___ | back 9 Nitrogen, Oxygen and Fluorine |
front 10 What acceptor atom directionality is the strongest (think fist bump)? | back 10 In line with the bond (direct fist bump) |
front 11 Define amphipathic | back 11 Has both polar and non-polar regions |
front 12 What is the Hydrophobic effect? | back 12 When hydrophobic (nonpolar) regions end up clumping together to maximize interactions with each other and decrease interactions with water |
front 13 Define micelles | back 13 Thermodynamically stable structures of amphipathic compounds in water (ex: round sphere shape) |
front 14 Talk about van der Waals Radius | back 14 The measure of how close an atom will allow another to approach. (Think Rubber ducky to face approach). Too close will repel. Too far, isn't effective. Just right will work fine. |
front 15 What is cytochrome f and what does it do? | back 15 It is a chain of 5 bound water molecules. It may provide a path for protons to move through the membrane. |
front 16 What happens when an enzyme and substrate interact? | back 16 Water in between them becomes displaced |