Wednesday, January 11, 2012

Life Science Notes 2 - Cell Structures

3-2 Cell Structures



Prokaryotic Cells
  • smaller and more simple than eukaryotic cells
  • do not have organelles
  • DNA forms a single circle that coils upon itself
  • make up bacteria

Eukaryotic Cells
  • more specialized than prokaryotic cells
  • contain organelles
  • make up fungi, animals, protists and plants
  • have a nucleus
Organelles


Our organelles notes are color coded to match our eukaryote cell diagram.  Each organlle is also assigned a factory "job" to aid in recalling what the function of each is.

Organelles: small structures with specialized functions found in the cytoplasm of eukaryotic cells.
Nucleus: information center of the cell - safe
Mitochondria: create ATP to power chemical reactions - powerhouse
Vacuoles: used to store nutrients - warehouse
Lysomes: break down old molecules into smaller parts - recycling trucks
Ribosomes: make proteins - machines
Rough ER: has ribosomes; make proteins - machines
Smooth ER: no ribosomes; make lipids - machines
Golgi appartus: receives proteins from the rough ER, puts into vesicles and moves to correct area of the cell - mail room

The diagrams we show were drawn on plain white paper and attached in our science notebooks.  Because the vocabulary words for this lesson are all the cell structures we didn't do vocabulary, instead we described each structure in our notes.



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