lab results: the relationship between diffusion and cell size
TRANSCRIPT
![Page 1: Lab Results: The Relationship Between Diffusion and Cell Size](https://reader036.vdocuments.mx/reader036/viewer/2022081520/56649f335503460f94c50450/html5/thumbnails/1.jpg)
Lab Results:
The Relationship Between Diffusion and Cell Size
![Page 2: Lab Results: The Relationship Between Diffusion and Cell Size](https://reader036.vdocuments.mx/reader036/viewer/2022081520/56649f335503460f94c50450/html5/thumbnails/2.jpg)
The agar/phenolphthalein block before carving…
• Phenolphthalein is an acid/ base indicator. It turns pink in the presence of a base and is clear and colorless in acidic solutions.
• NaOH was added to the block in addition to the indicator to help turn the block pink.
![Page 3: Lab Results: The Relationship Between Diffusion and Cell Size](https://reader036.vdocuments.mx/reader036/viewer/2022081520/56649f335503460f94c50450/html5/thumbnails/3.jpg)
The “cells”…
• The main block was carved into three smaller cubes which represent different sized cells.
![Page 4: Lab Results: The Relationship Between Diffusion and Cell Size](https://reader036.vdocuments.mx/reader036/viewer/2022081520/56649f335503460f94c50450/html5/thumbnails/4.jpg)
Soaking the blocks (“cells”)…
• The blocks were soaked in a dilute HCl acid solution for about 10 minutes.
• The images show the results emerging during the soaking time.
![Page 5: Lab Results: The Relationship Between Diffusion and Cell Size](https://reader036.vdocuments.mx/reader036/viewer/2022081520/56649f335503460f94c50450/html5/thumbnails/5.jpg)
The results….
• The blocks were removed from the acid solution after 10 minutes, blotted dry, cut open, and the depth of diffusion was measured…
![Page 6: Lab Results: The Relationship Between Diffusion and Cell Size](https://reader036.vdocuments.mx/reader036/viewer/2022081520/56649f335503460f94c50450/html5/thumbnails/6.jpg)
![Page 7: Lab Results: The Relationship Between Diffusion and Cell Size](https://reader036.vdocuments.mx/reader036/viewer/2022081520/56649f335503460f94c50450/html5/thumbnails/7.jpg)
![Page 8: Lab Results: The Relationship Between Diffusion and Cell Size](https://reader036.vdocuments.mx/reader036/viewer/2022081520/56649f335503460f94c50450/html5/thumbnails/8.jpg)