Netter's Essential Physiology

Cellular Transport: Passive and Active Mechanisms Ions and solutes move through several different types of carrier proteins and channels that allow solute movement through the plasma membrane in several different ways. The carriers and channels include: ▪ Ion channels and…

Cell Structure and Organization Organisms evolved from single cells floating in the primordial sea ( Fig. 1.1 ). A key to appreciating how multicellular organisms exist is through understanding how the single cells maintained their internal fluid environment when exposed…