CHAPTER 2 THE FUNDAMENTAL UNI Tabl Unica n unicellular or la single cell. activities of 1 e is no divis orm all life production ca 5. The span Fundamen most importa are the fundamental st study cells i Unit Life: Cell instead While studying a structure honeys which obtained fr this chance discovery these boxes - cells. was important, beca number smaller 2.1. WHAT IS LIVING BEING MADE UP OF ? Our earth inhabited by different kinds living organisms, who look very free each other. These organisms archaebacteria, eubacteria, protista (Amode Chlamylomonas), fungi, plants and animals. bodies made up microsco units called cell has same central position in biology as an atom physical sciences. basic structural functional unit organisms. Present-day stare common properties. For instance, employ DNA thr genetic material, surrounded plasma membrane, use mechanisms for energ metabolism. On other hand, present-day have evolved variety styles. Mart such bacteria (both archaebacteria eubacteria), protozoa (cg., amoeba) yess consists (called organisms) that capable independent self-replicative More complex multicellular composed collections function coordinated manner, with specialized to perform particular tasks. I human body, example, more than 200 cells, distinctive functions memory, sight, movement digestion. diversity exhibited Br many striking consider differences between o* brain. All whether they exists one celled (unicellular part o carrying out certain nutrition, respiration growth reproduction. essential survival 68 word Latin 'cellu "a little room*. An Robert Hooke (16 1665 discovered while examir bottle cork un microscope mad (2.1). observ combed porous found porou resemble units, cel his work book 1665. In 1674, Antor (Fig. 2.3) usins 1678, he discon