BIO 3302 Lecture Notes - Lecture 21: Malpighian Tubule System, Proximal Tubule, Uric Acid
13 Dec 2017
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Document Summary
Biggest mol, gets rid of most n per mol. Shelled egg: hard to get rid of waste, need low toxic waste to accum in shell. Large (cid:373)ol, (cid:374)eed tra(cid:374)sported to get rid of, does(cid:374)"t filt well, se(cid:272)reted i(cid:374)to (cid:374)ephro(cid:374) proximal tubule, as urate salt. Excreted as paste from cloaca bc precipitation, save water. Bod temp needs to be compatible w life, cannot freeze or denat prot, optimal temp range is narrow. Q10 rela, fold change in rxn rate for 10 degree change in temp. Need synch of bch rxn so if 1 step is affected, whole process is affected. Optimal temp range reflects enviro ani is in bc nat sel. Eurythermic vs stenothermic: diff ranges of tol in temp changes. Thermal conformer: tol temp, follow enviro and deal with consq. Homeotherm: bod temp stay const bc enviro temp is const. Endotherm: can gen heat from bod, meta rxn. Ectotherm: meta heat not sig to keep bod temp.
