This chapter deals with the basic unit of structure
of the human body and the cell. It explains the makeup of a composite cell and
the contribution of each of the organelles to cellular function (objectives
1, 2, and 4). It introduces the various mechanisms used to transport material
into and out of the cell (objectives 3 and 6). The process of cell reproduction
and the factors that control cell reproduction (objectives, 5, 7, 8 and 9) are
An understanding of cell structure is basic to
understanding how cells support life at the cellular and organismic levels.