Posted: May 27th, 2022
How does Milk of Magnesia® work?
How does Milk of Magnesia® work?
Each student will write a one-page paper answering their assigned question and its relationship to diffusion, osmosis, and water potential.
Part 2:
You will now use a real-life example of osmosis and diffusion in action. The presence of the anthocyanin pigment in the epidermal cells contributes to a good visual illustration of osmosis.
Watch the following video showing red onion cells beginning in an isotonic solution: https://www.youtube.com/watch?v=mXKqYrlmeMs
During the first minute of the video, salt water is introduced. After minute one, distilled water is added to the cells. Note what is happening to the cell membrane, cell wall, and large central vacuole (containing the pigment). The use of salt water is demonstrated in the very first minute of the film. Following the completion of the first minute, distilled water is introduced to the cells. Take note of what is going on with the cell membrane, the cell wall, and the huge central vacuole.
In 1-2 paragraphs, write an explanation of cellular changes from beginning to end of the video as it relates to diffusion, osmosis, and water potential.
In addition, please use Google Draw or draw your own picture (with color) showing what is occurring in the video. Three diagrams are sufficient (ex. Cell in isotonic solution, cell in salt water, cell in distilled water). Include arrows and labels on your diagram.
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How does Milk of Magnesia® work?
