BIOB34H3 Lecture Notes - Covalent Bond, Charged Particle, Homeostasis
Document Summary
1: charged particle (extra or surplus of electrons) Physiology: the study of how things work, things are very highly organized in mammalian physiology since we are complex organisms. The ultimate activity of the nervous system is the behavioural response (i. e. putting on a sweater when your cold) Homeostasis: adaptive significance of functions so that things work normally, tries to keep internal environment stable, cells are exposed to different fluids which and change your physiology. Most cells contact cellular fluids: protective cells are on the outside. Control mechanisms try to get homeostasis re-established: failure to re-establish leads to illness and death. Dna methylation appears to be critical in determining if its working and can lead to cancerous states. Tissues and organ systems all communicate with each other. Know conctrations of ions in intracelular and extracellular. Cells are in dynamic equilibrium inside are usually more negative (i. e. -70mm in neuron) than outside.
