11A10.47 - Cells

See paragraph one in the procedure section.
Photo Credit: http://montessorimuddle.org/2010/09/22/cells-cells-cells/
Code Number:
11A10.47
Demo Title:
Cells
Condition:
Excellent
Principle:
Physiology, Elasticity
Area of Study:
Physiology, Biology
Equipment:
Video Microscope, onion, prepared slide sets
Procedure:

Peel a thin layer of membrane off an onion and put it onto a microscope slide.  View the cells and their parts with the aid of the video microscope.  

References:
  • Mickey D. Kutzner, J. Michael Bryson, "Cell Membrane Potential Model Circuit Lab", TPT, Vol. 56, #8, Nov. 2018, p. 540.
  • Jeffrey R. Groff, "Estimating the Size of Onion Epidermal Cells From Diffraction Patterns", TPT, Vol. 50, # 7, Oct. 2012, p. 420.
  • D. L. Adams et al, "Macrophages in a Liquid Biopsy", Physics Today, May 2014, p. 16.
  • L. Giomi, A. DeSimone, "Mimicking Cell Mechanics", Physics Today, May 2014, p. 76.
  • Jane Kondev, "Bacterial Decision Making", Physics Today, Feb. 2014, p. 31.
  • Chwee Teck Lim, Dave S. B. Hoon, "Circulating Tumor Cells: Cancer's Deadly Couriers", Physics Today, Feb. 2014, p. 26.
  • Bathroom Readers' Institute, "Building Blocks", Uncle John's Bathroom Reader for Kids - Did You Know?, p. 241.
  • Lindsey Kratochwill, "Seeing Cells as They're Meant to be Seen: In 3-D", Popular Science, April 2014, p. 25.
  • Curt Suplee, "Cells without walls", Everyday Science Explained, National Geographic, p. 174.
  • Curt Suplee, "Turning sunlight into food", Everyday Science Explained, National Geographic, p. 176.
  • Curt Suplee, "Life runs on sugar", Everyday Science Explained, National Geographic, p. 178.
  • Curt Suplee, "Turning on your Body Heat", Everyday Science Explained, National Geographic, p. 180.
  • Curt Suplee, "How Cells Change as They Stay the Same", Everyday Science Explained, National Geographic, p. 190.
  • Curt Suplee, "The Death of a Cell", Everyday Science Explained, National Geographic, p. 198.
  • Curt Suplee, "Cells That Never Die", Everyday Science Explained, National Geographic, p. 200.
  • Sara Stein, "Cell Reproduction", The Science Book, p. 145.

Disclaimer: These demonstrations are provided only for illustrative use by persons affiliated with The University of Iowa and only under the direction of a trained instructor or physicist.  The University of Iowa is not responsible for demonstrations performed by those using their own equipment or who choose to use this reference material for their own purpose.  The demonstrations included here are within the public domain and can be found in materials contained in libraries, bookstores, and through electronic sources.  Performing all or any portion of any of these demonstrations, with or without revisions not depicted here entails inherent risks.  These risks include, without limitation, bodily injury (and possibly death), including risks to health that may be temporary or permanent and that may exacerbate a pre-existing medical condition; and property loss or damage.  Anyone performing any part of these demonstrations, even with revisions, knowingly and voluntarily assumes all risks associated with them.