University:
York University
Course:
SC/BIOL 2021 | Cell Biology
Academic year:

2023
Views:

224

Pages:

3
Author:

Nick T.

Lipids: Made up of H, C, O Structure and function Hydrophobic NP (Nonpolar) portions Fewer O-H polar, more C-H nonpolar Monomers: Don't have one. Lipids aren't polymeric. Structures (3): Triglycerides: Glycerol Fatty acids (x3) Phospholipids: Phosphate Glycerol Fatty acids (x2) Steroids (Sterol): 4 fused hydrocarbon rings Small hydrophilic molecules with 4 attached hydrocarbon rings and various functional groups Fatty Acids: Many hydrocarbon chains with a carboxyl group at the end (-COOH) Saturated: Single bonds Unsaturated: Some double bonds Cis vs. Trans: Cis has -H's on the same side of DB= Trans has -H's on opposite sides of DB Hydrogenation: Industrial process that adds hydrogen atoms to C double bonds of an unsaturated fatty acid Phospholipid: Glycerol + 2 fatty acids + polar phosphate group Ester Linkage: Functional group linkage formed by condensation reaction of carboxyl group and hydroxyl group Shapes that form when phospholipids are put in water (Polar): Micelles Phospholipid bilayer Amphipathic: Both hydrophilic polar part and hydrophobic NP part Relationship Between pH and pKa: If pH increases by 1 whole number, pKa increases by 10. If pH increases by 2 whole numbers, pKa increases by 100. Basic Nature of High pH: As pH increases, it becomes more basic. Polar vs. Nonpolar: A table categorizing amino acids based on their polarity: Green: Nonpolar Purple: Polar (uncharged) Red: Polar (charged) Acidic Blue: Polar (charged) Basic How Amino Acids Interact with Water: A list of amino acids with their corresponding hydrophobicity and polarity classifications.