NSC 101 Lecture Notes - Lecture 8: B Vitamins, Manganese, Circulatory System
22 Sep 2016
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Document Summary
Bioavailability is a subcategory of absorption and is the fraction of an administered dose of unchanged drug that reaches the systemic circulation. Vitamins: organic = carbon, water- and fat-soluble tpes, vulnerable to degradation (light, heat, oxygen exposure) Minerals: inorganic = no carbon, includes electrolytes - i. e. k, na, cl, generally stable. Fat-soluble = fat like: a, d, e, k. Some vitamins work together to function or have similar functions. Without coezymes, compounds a, b, and cd don"t respond to their enzymes. Major: calcium, phosphorus, potassium, sodium, chloride, magnesium, and sulfur. Trace: iron, zinc, manganese, copper, iodide, uoride, chromium, molybdenum. Major minerals are those present in amounts larger than 5 g (a teaspoon) Dairy: vitamins d and b-12, ribo avin, and choline. Protein: thiamin, ribo avin, niacin, biotin, vitamins b-6 and b-12, choline. Grains: sodium chloride, calcium (forti ed products), phosphorus, magnesium, iron, zinc, copper, selenium, chromium. Protein: sodium chloride (processed foods), potassium, phosphorus, magnesium, selenium, iron, zinc, copper.
