NFSC 100 Lecture Notes - Lecture 9: Cardiovascular Disease, Psoriasis, B Vitamins
5 Oct 2016
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Document Summary
Expression of genes: affecting how cells grow, divide and specialize. Body weight causes legs to bow (rickets) Protect cell membrane: red blood cells and immune cells. Vitamin e de ciency is rare in the us. Red blood cells rupture and infants anemia. A molecule with unpaired electrons that cause damage to body structures. Sources of free radicals: metabolism, immune system, cigarette smoke, pollutants. Destroy lipids in membrane causing cell lysis. Damage or alteration of dna sequence and gene function. Substances that remove free radicals and protect body structures. Coenzymes: thiamin, ribo avin, niacin, pantothenic acid, biotin. Folic acid: synthetic form of folate, better bioavalibility for food forti cation of nutritional supplement. A part of coenzymes needed in new blood cell synthesis. De ciency: damages (malfunction) nerves: immature red blood cells. Inability to carry suf cient oxygen in blood. Participates in >100 reactions in body tissues. Conversion to a. a to another (nonessential a. a)
