The Diversity of Cellular Life

1
The Diversity of Cellular Life

• Objectives
• 5.0. Identify cells, tissues, organs, organ
  systems, organisms, populations, communities, and
  ecosystems as levels of organization in the
  biosphere.
• 5.1 Recognizing that cells differentiate to
  perform specific functions Examples ciliated
  cells to produce movement, nerve cells to conduct
  electrical charges

2
Unicellular vs. Multicellular Organisms

• One cell vs. many cells
• NOT the same as prokaryotic vs. eukaryotic
• Examples of unicellular organisms

http//www.yellowtang.org/images/bacterial_cells1_
c_ph_784.jpg
Source http//saburchill.com/ans02/chapters/chap0
50.html
3
Specialized Cells in Multicellular Organisms
http//www.sciencequiz.net/jcscience/jcbiology/cir
culatorysystem/blood2.jpg
http//www.sciencequiz.net/jcscience/jcbiology/cir
culatorysystem/blood2.jpg
Source http//www.austincc.edu/histologyhelp/tiss
ues/tf_strat_sq_nk_e.html
Source http//sols.unlv.edu/Schulte/Anatomy/Leave
s/Leaves.html
4
Levels of Organization in Multicellular Organisms
Similar cells join together to form
tissues. Groups of different tissues work
together to form..
organs. Groups of organs that work together to
perform a specialized task are called..
organ systems. All the organ systems work
together to complete an organism.