Materials Needed

For Procedure A—Diffusion:

textbook petri dish white paper forceps potassium permanganate crystals millimeter ruler (transparent)

For Procedure B—Osmosis:

textbook thistle tube molasses (or Karo dark corn syrup) selectively permeable (semipermeable) membrane (presoaked dialysis tubing of 1 5/16" or greater diameter) ring stand and clamp beaker rubber band millimeter ruler

For Procedure C—Hypertonic, Hypotonic, and Isotonic Solutions:

textbook test tubes marking pen test-tube rack

10 mL graduated cylinder medicine dropper uncoagulated animal blood distilled water

0.9% NaCl (aqueous solution) 3.0% NaCl (aqueous solution) clean microscope slides coverslips microscope

For Procedure D—Filtration:

textbook glass funnel filter paper ring stand and ring beaker powdered charcoal 1% glucose (aqueous solution) 1% starch (aqueous solution) test tubes

10 mL graduated cylinder water bath (boiling water) Benedict's solution iodine-potassium-iodide solution medicine dropper

Virtual Physiology Lab: 9, Diffusion, Uggi' Osmosis, and Tonicity

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Essentials of Human Physiology

Essentials of Human Physiology

This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.

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