BIOB34H3 Lecture Notes - Lecture 6: Gene Expression, Steroid Hormone Receptor, Stoping
28 Sep 2016
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An animal"s work: use chemical energy to synthesize complex molecules. Describe molecular structure of phospholipids and how it helps to determine membrane properties. Describe how receptors are used by cells to transmit extracellular signals. Identify the apical/basolateral regions and junctions of epithelia. Differentiate transcellular and paracellular paths for molecular transport. Energy gradients key to homeostasis, separation b/w internal and external environment. There are 2 types of borders cell membranes and epithelia. E. g. epithelia cells that line blood vessels (circular sys. Lipids large class of molecules that are insoluble in water. Their insolubility (hydrophobia) is a result of their possessing non-polar structures. Amphipathic - have both polar and non-polar structures this makes parts of them hydrophobic but other parts hydrophilic fig. There are 5 functional types of proteins in cell membranes: proteins can belong in more than one of these transporters: channels tunnel through membrane.
