Biology - Animal and Plant Organelles

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  1. Nucleus
    • - Contents called nucleoplasm
    • - Controls cell through DNA
    • - Directs protein synthesis and cell division
    • - Surrounded by double membrane
    • - Contains nucleolus (composed of proteins, DNA, RNA, produces ribosomes)
  2. Endoplasmic Reticulum
    • - Network of membrane bound cisternae
    • Smoothe ER: synthesis of lipids, steroids
    • - transport materials in and between cells
    • - Deoxifies drugs and some metabolites
    • - Rough ER: ribosomes on membrane surface
    • - involved in synthesis of proteins.
    • - Transport of proteins in cisternae                  
  3. Mitochondria
    • - Bound by double membrane
    • - Inner membrane folded into cisternae, increases surface area for attachment of enzymes.
    • - Membranes enclose a matrix
    • - cisternae and matrix provide different sites for various stages of aerobic respiriation and production of ATP
    • - Contain mitochondrial DNA and ribosomes which control enzyme production and allow replication
  4. Golgi Apparatus
    • Receives enzymes, proteins, lipids, glycoproteins synthesised in ER
    • Encloses them into membranes, releases into cytoplasm or outside cell.
  5. Lysosome
    • Spherical sac containing digestive enzymes
    • Fuse with vacuoles, enhance digestion
    • Breaks down unwanted cell contents
    • Can completely break down damaged cells
  6. Centrioles
    • Set of 2 cylindrical bodies adjacent to the nucleus
    • Involved in flagella and cilia formation
    • Cell division in animals
    • Sometimes found in algae
Card Set:
Biology - Animal and Plant Organelles
2013-05-05 03:55:28

Organelles found in plants and animals
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