BIO 203 Lecture Notes - Lecture 1: Indian Anna, Basal Metabolic Rate, Comparative Physiology
2 Nov 2016
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Document Summary
A physiologist is interested in how things work . Formal definition: the biology study of the functions of living organisms and their parts. Operational definition: the study of how cells interact with their environment to obtain the things required for life ( vital substances : vital substances- water, salts, oxygen, nutrients, heat, etc. Focus is animal physiology and human physiology. Basic unit of life is a cell. Cells interact in inside of the organism by passing around vital materials through exchange and the organism uses exchange systems to exchange vital substances with the external environment. Any system that allows for the exchange of material ( vital. Ecf- extracellular fluid- all of the fluid inside the organism that isn"t inside the cell. Cells interact w/in icf to get vital materials and rid of waste. Organisms do the same thing w/in the ecf. Small organisms can diffuse the waste and vital materials.
