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Organelles
Oganelles
9
Biology
10th Grade
10/17/2013

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Term
Endoplasmic Reticulium
Definition

Structure                         function 

  • Cell membrane                                  *  Production of lipids & proteins
  • nuclear membrane                            *  occurs in the lumen & on top
  • interior                                                   of the endoplasm reticulm
Term
Ribosomes
Definition

Structure                Fuction

  • made of 1/+ RNAs                              *builds protein
  • different sized protens                      *makes RNA
  • located in cytoplasm                            *responsible 4 tRNA & mRN                                                               *site of proteins sythesis
Term
Nucleus
Definition

Structure                         Fuction

  • center piece                                      *stores DNA in cells
  • chromosomes=DNA
  • chromatin=loose cobination of DNA
  • nuclear envelope=protection
  • nuclear post
Term
Centrosomes
Definition

Structure                  Function

*small region of cytoplasm                              * main microtubules organizer=center

*made of 2 small structures called centrioles                   *produces microtububles

*found in an animal cell                                   *centrides organizes microtubules to form cilia & flagelia

*associated w/ nuclear membrane during prophase in the cell cycle          *divides DNA during cell                                                                                                                              division

Term

Golgi Appouratus

Definition

Structure                       fucti       


 

*found in cytoplasm &   *animal & plant cells

*stacks of membrane _process, sorts & dilivers protein

_packages protein

_stores protein

_protein ready to be sent off

*layered stacks of dawn structures

Term
Vesical Cell
Definition

*small membrane bound sac

°divides material from cytoplasm

°transports the material to place to place

°protects & transports protein

Term
vacuole
Definition

*can take up more than 1/2 the cell volume only plant cell

*membrane that surrounds the fluid

*size depends on the vacuole

°stores 

°vacuums

°most promenent plant cell

°fluid fills sac

Term
Mitochondtia
Definition

*outer membrane

*inner membrane

*matrix

*had it owm ribosomes&DNA

°produces energy 

°building&breaks down cells

 °converts molecules of food that you eat

Term
Chioropiost
Definition
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