ANSC 2120 Lecture Notes - Lecture 11: Triglyceride, Cell Nucleus, Thiamine
22 Feb 2016
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Document Summary
A nutrient is a chemically distinct constituent or group of. Nutrients: an introduction (cid:1) (cid:1) constituents of food that aids in the support of life (cid:1) (cid:1) (cid:1) (cid:1) These broad classifications of nutrients include >50 chemically distinct substances. *** vitamins and minerals are classified as micronutrients because they are required in much smaller amounts than the other nutrient classes. Energy is required for: maintenance (basic physiological functions, tissue, new tissue synthesis (incl. secreted products) replacement) Nutrients: an introduction: storage in forms that can be mobilized for later use (e. g. triacylglycerols, glucogen) Major energy sources: carbohydrates (mainly glucose and its metabolites, lipids (mainly long-chain fatty acids, short-chain fatty acids (esp. in ruminants and other, proteins (amino acids) species with significant fermentative digestion) Protein (quantitatively most important: outline of mechanisms for protein synthesis: Amino acids activated by atp and amino acid activating enzymes to form aminoacyl-trna.
