BIBC 120 Lecture Notes - Lecture 12: Superoxide Dismutase, Brussels Sprout, Vitamin K2
Document Summary
Vitamin e: hydrophobic molecules that serves as an anti-oxidant for lipids and membranes, oxygen: very reactive and likes being reduced, lots of reactive oxygen species (ros) created as intermediates during oxygen. Vitamin e can neutralize free radicals, preventing them from damaging phospholipids: many types of anti-oxidants (enzymes, vitamins, etc. ) work together to neutralize ros, enzymes, superoxide dismutase (sod): 2o2, catalase: 2h2o2 -> 2h2o + o2, peroxidase: h2o2 -> 2h2o. -> h2o2 + o2: fat-soluble antioxidants: tocopherols, carotenoids, water-soluble antioxidants: ascorbic acid, uric acid, glutathione. Includes phylloquinones (vitamin k1) from plants and menaquinones (vitamin. Involved in enzymatic activity that prepare coagulation system to operate: vitamin k needed to help enzymes convert glutamate (glu) - Vitamers of a particular vitamin: number of chemical compounds that generally have a similar molecular structure, each of which shows vitamin activity in a vitamin-deficient biological system (ex: retinal, retinol, and retinoic acid)
