See the below image for the Cell structure and function diagram. By: Daniel Nelson | November 20, 2017. The cell structure is defined by the cell membrane, the cytoplasm, and the nucleus. A cell is the smallest unit of life and its structure helps it to work as the basic building block of biology. The cell function is to keep all of the functions of the body performing as intended.
Some functions performed by cells are so vital to the existence of life that all cells perform them (e.g. cellular respiration). Others are highly specialised (e.g. photosynthesis). Figure 2.9 shows a two-dimensional drawing of an animal cell. The diagram shows the structures visible within a cell at high magnification.
The roles of the organelles within the cells need to be introduced and relate structure and location of organelles to their function. Cells differ in size, shape and structure and therefore carry out specialised functions. Link this to tissues.