semipermeable cell membrane is like a chain link fence

Categories: Comparisons

An example of a teaching analogy:

"A semipermeable cell membrane may be permeable to water but impermeable to another molecule like sugar. This action may be imagined as being analogous to a chain link fence which would allow certain particles to pass through it, but would be impermeable to particles which don't have the proper size or shape to pass through the openings formed by the wire."

Source: Murray Hart, retired science teacher, previously posted at scienceanalogies.com

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Author: Keith

Former school and college science teacher, teacher educator, research supervisor, and research methods lecturer. Emeritus Professor of Science Education at the University of Cambridge.