Biology 2601A/B Study Guide - Midterm Guide: Enzyme Kinetics, Terrestrial Animal, Countercurrent Exchange
17 Jan 2014
School
Department
Course
Professor
Document Summary
Temperature: intensity of motion by the atoms in the object. Temperature determines the direction of heat transfer (e. g. warm cool) Temperature determines the direction of heat transfer (e. g. warm cool) e. g. rabbits (image) loses heat by respiratory and cutaneous evaporation. Gains thermal radiation from all objects in surrounding, and it"s metabolism. 100 c some hot springs bacteria still survive. Ectotherms: rely on external temperatures to determine tb. *heterotherms: have more than one temperature set point, or switch between homeo-and pikiothermy. *regional endothermy/heterothermy: different tb in different parts of the body. Relationship between temperature and metabolism in an ectotherm: M=a10^(ntb) increasing body temp = exponential increase in metabolism. M- metabolic rate a & n constants. Logm = loga + ntb (think y = b + mx) Tb variable change, that results in change in logm (metabolism) Coefficient ration of the rate of a process at one temperature over the rate of the same process at a different temperature 10 c lower.
