BISC 101 Chapter Notes - Chapter 41-46: Lingual Lipase, Gas Exchange, Frijid Pink

• School: Simon Fraser University
• Department: Biological Sciences
• Course: BISC 101
• Professor: Megan Barker

Document Summary

If function of cell/tissue depends on diffusion, the shape it has usually allows for increase in sa relative to its volume. Homeostasis: ta(cid:271)ilit(cid:455) i(cid:374) (cid:272)he(cid:373)i(cid:272)al a(cid:374)d ph(cid:455)si(cid:272)al (cid:272)o(cid:374)ditio(cid:374)s i(cid:374) a(cid:374) a(cid:374)i(cid:373)al"s (cid:272)ells, tissues, a(cid:374)d orga(cid:374)s. (cid:894)ph, calcium ion concentration) Most enzymes function under narrow range of conditions. Epithelium: responsible for forming internal and external environment that can be different from each other. And keeps physical and chemical conditions inside an animal relatively constant. Controls transport of ions, water, nutrients, and wastes. Effectors oppose/reduce changes in internal syst4em: sonsor- a structure that sense aspects of the interial/ exterial environment. Integrator- evaluates incoming sensory information and unconsciously decided if response is needed for homeostasis: effector- structures that help restore internal condition. Heat flo(cid:449)s (cid:862)do(cid:449)(cid:374)hill(cid:863) fro(cid:373) regio(cid:374)s of higher te(cid:373)perature to regio(cid:374)s of lo(cid:449)er. High drop in temperature can slow down enzyme and protein production. Most important heat source in ectotherms are radiation and conduction.