BIOL 1005 Lecture Notes - Lecture 8: Trans Fat, Yolk, Myelin
Document Summary
Carbon why so useful for life: 4 valence electrons , bonds with a variety of other elements, has an ainity for binding with itself, can for long chains, rings and branches. Removal of an h2o molecule to join two monomers together to form a polymer. Separaion of a polymer into two monomers by addiion of an h2o molecule. Glucose chained with oxygen > turned into glycogen. Amylase - enzyme breaks down starch in saliva. Store energy: nonpolar (do not require water for storage, 9cal/gram. Cell membranes: phospholipids, myelin sheath (insulate nerves) Structure: plant & animal cells (storage of energy) Hemoglobin: requires fat for blood cell membrane. Typically plant oils which have to be hydrogenated to make them saturated with hydrogen so they are more stable at room temperature. Substances which break up fats into iny droplets to allow suspension in water. Mayonnaise: lecithin (emulsiier in egg yolk) Hormones: insulin, thyroid, adrenalin/norepinephrine, growth factor hormone. Movement: muscles, ligaments, tendons, living bone.
