BIOL 100 Lecture Notes - Lecture 5: Lactic Acid, Anaerobic Respiration, Electrochemical Gradient
Document Summary
Transport- moving molecules or ions across cell membrane. Diffusion- the passive movement of molecules or particles along concentration gradient. Moving from high concentration to low concentration. Active transport- use energy atp use to move the material. Moving molecule from low concentration to high concentration. High concentration to low concentration by using atp. Passive transport- had no atp used of energy when moving material. Concentration gradient- by looking at the solute concentration on both side of the cell membrane. Diffusion- crossing membrane from high to low concentration. Easy to diffuse small or non-polar without any help. Depend upon size, shapes, and chemical makeup. Osmosis- is diffusion of water through a selective permeable membrane. Facilitated diffusion- thi(cid:374)gs that do(cid:374)"t fit i(cid:374)to (cid:272)ell membrane to large or polar. Facilitated diffusion- specific to a type of molecule- from high to low concentration-that let thing cross through- (cid:271)e a(cid:271)le to (cid:272)ross (cid:271)ut the(cid:455) (cid:272)a(cid:374)"t (cid:272)ross through u(cid:374)less help fro(cid:373) a protei(cid:374)