BIO 203 Lecture Notes - Lecture 1: Extracellular Fluid, Fluid Compartments, Organism
8 Sep 2018
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Document Summary
Physiology- how cells operate with its environment to obtain things for life. Exchange system= any system that interacts with outside and inside;system that allows for the exchange of materials. Cellular level-(four general types of cells) epithelial, connective tissue, nerve, muscle. Tissue level- group of cells with common structure and function. Organ level- organization of different tissue to perform specific function. System level- several organs organized to carry out larger body functions. Basic principals: lot of water; 75% of body weight. 25% biochemical substances (proteins : compartmentalized, cell=basic unit, ecf outside (extracelluar fluid) Asymmetries between compartments are essential for physiological processes. All life have same problems(deals with the fundamental problems: all of us need energy; life is energetically unfavorable. Adenosine triphosphate (atp: principal form of energy used by cells. Metabolic rate- amount of energy an animal uses in a unit amount of time.
