BIO120H1 Lecture Notes - Lipid Bilayer, Membrane Transport Protein, Passive Transport
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BIO120H1 Full Course Notes
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Document Summary
What is covered in the exam is what"s covered in the lectures. For the next lectures, there will be fill-ins. Tutorials will start the following monday (not next monday) schedule is posted on blackboard. In the 1st lecture we looked at the membrane that surrounds the cell & surrounds the organelles of the cell. Went through the features of this membrane & 1 of the features of these membranes is that they isolate those membranes from many other parts of the cell. So we"re going to cover how small molecules are transported across the membranes. The lipid bilayer is not permeable to all molecules. So the lipid bilayer is permeable to hydrophobic molecules such as o, carbon dioxide, n & benzene. Small uncharged polar molecules will also cross the membrane so the membrane is permeable to these molecules such as water, urea & glycerol but to a lesser degree than hydrophobic molecules.
