Cell Parts and Functions

Cell Parts and Functions

Cell Parts and Functions1

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3The Cell TheoryThe cell theory states that:All living things are composed of one or more cells

All cells come from pre-existing cells

The cell is the functional unit of life4Why Cells DivideHealing and Tissue Repair

Growth

Reproduction of Organisms5Common StructuresOrganelles smaller parts of the cell with specific functions

6NucleusLooks like:A prominent sphere with a dark spot and squiggles inside

Function:Directs cell's activities7

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9NucleolusLooks like:A dark spherical mass within the nucleus

Function:Site of ribosome assembly and storage of RNA10ChromatinLooks like:Meshwork of fibers inside the nucleus

Function:Reproduction of traits

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12Cell membraneLooks like:Two thin double lines with pores

Function:Separates the cell and its contents from the environment13

14Cell WallLooks like:Double layer made of small fibers

Function:Encloses plant cells 15CytoplasmLooks like:Clear jelly like material

Function:Contains cell organelles and used for transport16CentrioleLooks like:Small square like structures

Function:Used in animal cell reproduction17VacuoleLooks like:Fluid filled sacs surrounded by membrane

Function:Used for digestion18

19ChloroplastLooks like:Oval shape and gives plants green colour

Function:Traps sun's energy to make sugar

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21FlagellumLooks like:Long hair like structure

Function:Helps the cell move

22CiliaLooks like:Hair like structures that cover cell

Function:Helps cells move23MitochondriaLooks like:Large rod shaped organelles

Function:Power house of the cell

24RibosomesLooks like:Spherical organelles attached to ER

Function:Location of protein production25Endoplasmic ReticulumLooks like:A system of tubes and channels

Function:Storage, separation, and transport of materials in cell26

27Golgi ApparatusLooks like:Closely stacked and flattened sacs found close to the nucleus and ER

Function:Store proteins, enzymes, and carbs

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29LysosomesLooks like:Spherical organelles located in cytoplasm

Function:Merge with vacuoles to digest food particles30