Cell Organelles

Brief description of structure and function

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  • Created by: Lucy
  • Created on: 03-05-10 17:13

Nucleus

Structure:-

  • double membrane nuclear envelope
  • pores

Function:-

  • nucleolus manufactures RNA and ribosomes
  • holds the genetic info
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Mitochondria

Structure:-

  • rod shaped
  • double membrane
  • cristae (folds)

Function:-

  • production of ATP
  • aerobic respiration
  • matrix contains proteins, lipids, DNA and enzymes for respiration
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Rough Endoplasmic Recticulum

Structure:-

  • ribosomes on surface of membranes
  • cisternae (flattened sacs)

Function:-

  • provides a large surface area for protein synthesis
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Smooth Endoplasmic Recticulum

Structure:-

  • no ribosomes on surface
  • tubular shape

Function:-

  • synthesis of lipids and carbohydrates
  • storage of lipids and carbohydrates
  • transportation of lipids and carbohydrates
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Golgi Apparatus

Structure:-

  • cisternae (flattened sacs)
  • vesicles

Function:-

  • forms lysosomes
  • adds carbohydate to protein to form glycoprotein
  • produces secretory enzymes
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Lysosomes

Structure:-

  • vesicles containing enzymes

Function:-

  • digest worn out organelles
  • break down dead cells
  • break down material ingested by phagocytic cells (e.g. white blood cells)
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Ribosomes

Structure:-

  • small cytoplasmic granules

Function:-

  • contain RNA and protein for protein synthesis
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Microvilli

Structure:-

  • finger-like projections

Function:-

  • increase surface area for more efficient absorption
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Comments

Katie

good stuff :D

Abigail

I can't rate it but I Can't beleive how long it took me to find this, this is all I wanted.

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