BISC306 Lecture Notes - Lecture 1: Thermostat, Sponge, Negative Feedback
1 Oct 2017
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Document Summary
Eumetazoans (most of the rest, including mammals) have true tissues. Regulation of the internal environment to maintain relatively stable and constant conditions. Thermostat that produces heat as a consequence of a temperature reading. Reaction happened and the product of the reaction drives more reactions to occu. Child birth contractions --> contraction occurs and body is forced to creat more contractions to occur create. Created by: partial positive charge of h and partial negative charge of o. Depends on # of solute molecules in a given volume. Relationship between molarity and colligative properties = complex for electrolytes. Common electrolytes are salts (nacl, kcl), acids and bases. Ph decreases (becomes more acidic) in lower temp. Pka - helps determine effectiveness of a buffer. In biological systems are weak acids and their salts. Proteins - most important in the regulation of blood plasma (hemoglobin) ph effects protein structure and enzymatic activity. Human body = made up of 20% lipid.
