BIO202H5 Lecture Notes - Lecture 5: Reynolds Number, Radiant Energy, Thermal Energy
Document Summary
Potential energy: energy to be used up, trapped in a system. Energy that cannot be processed: feces or urine. Radiant energy: energy received or given off by sunlight. Mechanical energy: energy that can be used to move. Chemical energy: energy held in chemical bonds digestion. Electrical energy: energy from movement of ions down a charge gradient. Highlight the incorrect part of the following statement: Small animals in water obtain food particles more efficiently than large animals in water. (cid:373)aller a(cid:374)i(cid:373)als (cid:374)eed less e(cid:374)erg(cid:455), (cid:271)ut that does(cid:374)"t (cid:373)ea(cid:374) that this is a (cid:373)ore effi(cid:272)ie(cid:374)t pro(cid:272)ess. We have to consider physical limitations on the body of differently sizes animals. Suspended small particles are more abundant in water. Many more aquatic animals are suspension feeders (feeding on debris, phytoplankton, zooplankton) Small reynolds number: fluid flow dominated by viscosity (flow is laminar and boundary layer is thick) Large reynolds number: fluid flow influenced by inertial forces (flow is turbulent and boundary layer is thin)
