This is a completely free site and requires no registration. This powerpoint was kindly donated to is home to over a thousand powerpoints submitted by teachers. NUCLEOLUS Aka “little nucleus” Found in the nucleusĬHROMATIN contains genetic code that controls cellmade of DNA & proteins NUCLEAR MEMBRANE separates nucleus from cytoplasm controls movement of materials in & out of nucleus NUCLEUS Directs all cell activities Contains instructions for everything the cell doesThese instructions are found on a hereditary material called DNA Usually the largest organelle
CELL WALLĬELL MEMBRANE Outer covering, protective layer around ALL cellsFor cells with cell walls,the cell membrane is inside the cell wallAllows food, oxygen, & water into the cell & waste products out of the cell.ĬYTOPLASM gelatin-like inside cell membraneconstantly flowsaka protoplasmĬYTOSKELETON scaffolding-like structure in cytoplasmhelps the cell maintain or change its shapemade of protein
Protects the cellgives shapeis made of celluloseA cell wall is found in plants, algae, fungi, & most bacteria. Prokaryotic Cells (proh KAYR ee yah tihk) cells without membrane-bound structuresEX: bacteria pond scumĮukaryotic Cells (yew KAYR ee yah tihk) cells with membrane-bound structuresEX: animals, plants, fungi and protists Chapter 2 “Cells” Section 1: “Cell Structure Pages 38 – 40 LESSON 1ĬOMMON CELL TRAITS A cell is the smallest unit that is capable of performing life functions.ĬOMPARING CELLS The size & shape of a cell relates to its function.
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