BIOA01H3 Lecture Notes - Lecture 2: Endoplasmic Reticulum, Cell Membrane, Nuclear Membrane

• School: UTSC
• Department: Biological Sciences
• Course: BIOA01H3
• Professor: Mark Fitzpatrick

Document Summary

Topic 2: the eukaryotic cell: membranes and compartments. All lipids are hydrophobic, it is because they share a property and not a structure, lipids are a chemically diverse group. Fatty acids are long chains of carbons attached to a carboxyl group at on end. When we add double bonds to fatty acids, they are no longer linear, they would be kinked. An unsaturated fatty acid contains one or more carbon-carbon bonds (loosely packed) The more double bonds, the more kinks, which makes it more fluid. They form van der wall forces (weak interactions) Length (the more carbons) and level of saturation has an effect (the stable the structure) The longer the length more interactions, increase in van der walls forces. The cell is the fundamental unit of life. Robert hooke (1665): the major advance the discovery of the microscope. Important in the discovery of the microscope ( looking at the cork tissue)