BIOL 206 Lecture 1: Common Factors of Eukaryotes 1-4-17
Document Summary
Overview of multicellular organisms: weekly pre-lecture quizzes on reading on canvas (typically monday, do (cid:862)most i(cid:373)porta(cid:374)t (cid:272)o(cid:374)(cid:272)epts(cid:863) after (cid:272)lass every day, powerpoints always available on canvas, multicellular eukaryotes are united by common cellular features, flexible cell surface. Allows for sufficient surface volume ratio as size increased. Plants can do endo/ exocytosis but in a different way than animals. (animals use it to eat- but plants are autotrophs) action of engulfing that makes it active. Example: difference between mouse and elephant mouse has greater surface area to volume ratio. Because of this the mouse loses heat really fast thus has to eat all of the ti(cid:373)e. a(cid:374) elepha(cid:374)t does(cid:374)"t have to eat as (cid:373)u(cid:272)h to (cid:373)ai(cid:374)tai(cid:374) (cid:271)ody te(cid:373)perature. Ex: red blood cell can change shape to parachute and slipper shape when going through capillaries. If it is random motion- by chance= passive. If there is direction/organized then it is active (uses atp: complex and extensive microskeleton.
