Member Login

Homeostasis

 Insulin_cropped

Human Insulin Hexamer.  Source: http://commons.wikimedia.org/wiki/File:Human-insulin-hexamer-3D-ribbons.png

  1. Biological need for homeostasis

  2. Link steady state processes and homeostasis
    Students should be able to relate the laws of thermodynamics to homeostasis and explain how the cell or organism maintains homeostasis (a system seemingly in equilibrium) using non-equilibrium mechanisms.  

  3. Quantifying homeostasis

  4. Organization of chemical processes

  5. Control mechanisms
    Students should be able to summarize the different levels of control (including reaction compartmentalization, gene expression, covalent modification of key enzymes, allosteric regulation of key enzymes, substrate availability and proteolytic cleavage), and relate these different levels of control to homeostasis.  

  6. Cellular and organismal homeostasis
    Students should be able to describe homeostasis at the level of the cell, organism, or system of organisms and hypothesize how the system would react to deviations from homeostasis.