Essay on Biology Lab 6 - 611 Words

Biology Lab 6 Please answer these questions then place them in the drop box for this lab. Use Microsoft word if possible. Lab 6: Diffusion 65 Questions 1. Which dye diffused the fastest in corn syrup? Red Dye In your chosen material? Lemon Concentrate, Blue Dye 2. Does the rate of diffusion correspond with the molecular weight of the dye? The the density of the medium and the molecular weight of the dye will determine the rate of diffusion. 3. Does the rate of diffusion change over time? How might this affect your calculated diffusion rate compared to the actual diffusion rate? Yes, because the rate of diffusion is faster until the equilibrium is reached; after equilibrium the rate of diffusion begins to decrease.†¦show more content†¦2. What molecules remained inside of the dialysis bag? The starch had remained inside of the dialysis bag. 3. Of the substances that diffused through the bag, did all of the molecules diffuse out? About half of the glucose did diffuse through the bag. 4. Does the dialysis bag or the beaker contain more starch? What about glucose? The dialysis bag does contain more of the glucose and starch than the beaker does. 5. Is the bag hypotonic with regards to the Lugol’s solution, or the beaker? What about the starch solution? Lugol’s: beaker and the starch; bag 6. What results would you expect if the experiment started with glucose and Lugol’s Solution inside of the bag, and starch and water in the beaker? Why? The starch would stay in the beaker and the glucose and Lugol’s solution would be inside and outside of the bag. The glucose would then able to diffuse because the molecules are now small enough to pass through it. 7. Draw a diagram of this set up. Use arrows to depict the movement of each substance in the dialysis bag and the beaker. 8. What type of membrane does the dialysis tubing represent? Give an example of this type of membrane that can be found inside the body. Semipermeable membrane; an example of this type in the human body can be found in the kidney. The kidney doesn’t allow the protein molecules to pass through the membrane. 9. How does the glucose concentration affect diffusion rate? TheShow MoreRelatedWhat Color Bead Bug?1042 Words   |  5 PagesIntroduction The purpose of the lab was to see what color bead bug would survive the longest in the environment. By performing the experiment, natural selection was being tested. Natural selection is when organisms that are most suited to the environment survive and reproduce more successfully. Certain colored bead bugs would survive longer, because they blended in. The bead bugs that are a more prominent color stood out more and were eaten right away. This experiment displays how the populationRead MoreEuthanasia765 Words   |  4 Pagesï » ¿WILLIAM PATERSON UNIVERSITY COLLEGE OF SCIENCE HEALTH DEPARTMENT OF BIOLOGY 1. 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