Thursday, 9 January 2014

Cells and their Organelles

Other interesting organelles:

Lysosome

  • Originated from the GA (golgi apparatus)
  • Can be found in most plant and animal cells, especially phagocytic cells.
  • Breaks down worn out organelles within the cell. 
  • Digests material taken in through endocytosis (e.g. amoeba feeding) or phagocytosis (ingestion of bacteria by white blood cells)
  • Produces useful materials for the cell (from the break down of worn out organelles)
  • Can fuse with vesicles containing objects that need digesting

Cytoskeleton (Inside Cytoplasm- not a true organelle)
  • Provides support for organelles.
  • Helps to direct movement of organelles inside the cell
  • Provides support for the cell, to maintain the cell shape.

Cilia
  • For cell motility (movement)
  • Found in sperms

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