BIOL 203 Lecture Notes - Lecture 7: Homeostasis, Methionine, Osteoblast
21 Jun 2015
School
Department
Course
Professor
Document Summary
Major component of intracellular fluid and extracellular fluid. Major solvent and in chemical reactions metabolic water environ 250-350 ml per day] Regulates body temp makes heat but can denature enzyme of too hot sweating maintain temp. It evaporate when exercise to cool down skin (more blood in skin) Doesn"t work if sweat goes on clothe/ drips. Osmosis electrolytes help control volume of water by it (na+ extracellular0 (k+ intracellular) Diffusion of water through selectively permeable membrane goes where there is more of solute. % of water in body depends on age/sex/ body composition (more water in muscle) Pituitary gland release antidiuretic hormones adh stimulate kidney to produce less urine. Adrenals gland secrete aldosterone reduce elimination of sodium so water. Excess water dilutes sodium concentration so water moves to cells dizziness/ headache coma, death. Necessary part of bones/teeth, maintain fluid balance, maintain acid balance, pat of transmission of nerve impulse, cofactors of chemical reactions.
