Membrane Permeability (pH sensor)

Students use a pH sensor to explore which substances can and cannot pass through a cell membrane model.

Supports NGSS Disciplinary Core Idea LS1.AThe cell membrane is represented by a semi-permeable dialysis tubing sac filled with a substance. Students will look for evidence to determine whether starch, iodine, or hydrogen ions are able to pass through the membrane. Students can detect non-visible H+ ion movement by observing changes in pH with a pH sensor, in addition to visible changes when starch and iodine come into contact with one another.

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	EB2_Membrane_Permeability_S.docx	533.53 KB
	EB2_Membrane_Permeability_S.pdf	369.64 KB
	EB2_Membrane_Permeability_Google_Slides.pdf	30.06 KB

Teacher Files

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Membrane Permeability

Featured Equipment

Wireless Sensor Storage for Temperature, pH and Conductivity Sensors

Storage for Wireless Temperature, pH and Conductivity Sensors

Each tray can store up to 10 wireless sensors; sensors sold separately.

Wireless pH Sensor

Here’s the best tool for measuring pH since litmus paper. The Wireless pH Sensor connects via Bluetooth® to monitor the pH of solutions.

Many lab activities can be conducted with our Wireless, PASPORT, or even ScienceWorkshop sensors and equipment. For assistance with substituting compatible instruments, contact PASCO Technical Support. We're here to help.
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Source: Lab #02