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Chapter 2 “Cells” Section 1: “Cell Structure Pages 38 – 40 COMMON CELL TRAITS A cell is the smallest unit that is capable of performing life functions. COMPARING CELLS The size & shape of a cell relates to its function. (job it does) Prokaryotic Cells (proh KAYR ee yah tihk) cells without membranebound structures EX: bacteria pond scum Eukaryotic Cells (yew KAYR ee yah tihk) cells with membranebound structures EX: animals, plants, fungi and protists CELL WALL protects the cell gives shape is made of cellulose A cell wall is found in plants, algae, fungi, & most bacteria. CELL MEMBRANE Outer covering, protective layer around ALL cells For cells with cell walls,the cell membrane is inside the cell wall Allows food, oxygen, & water into the cell & waste products out of the cell. CYTOPLASM gelatin-like inside cell membrane constantly flows aka protoplasm NUCLEUS Directs all cell activities Contains instructions for everything the cell does These instructions are found on a hereditary material called DNA Usually the largest organelle CHROMATIN contains genetic code that controls cell made of DNA & proteins This powerpoint was kindly donated to www.worldofteaching.com http://www.worldofteaching.com is home to over a thousand powerpoints submitted by teachers. This is a completely free site and requires no registration. Please visit and I hope it will help in your teaching.