Facilitated Diffusion Lab Report
Lab Report #1
Facilitated diffusion
By: Kelsey Clark
Biology 2401 C1L
Dr. Fanini
October 2, 2017
Facilitated Diffusion Facilitated Diffusion is a type of passive transport that allows for lipid insoluble molecules or molecules that are too large to pass through a membrane. The molecules are able to pass through by binding with protein carrier molecules and moving down the concentration gradient. The rate of diffusion will continue to increase until the carrier proteins are saturated, and at this point the rate will not continue to increase. This is different than active transport because this process does not require ATP. This process is important for multiple systems in the human body. The purpose of this experiment is to show that some …show more content…
In Table 1, as the amount of glucose increased, the diffusion rate increased as well. Also, as the protein carriers increased so did the rate. With this evidence, it can be proven that the amount of carrier proteins and the concentration of a solute will affect the rate of diffusion. The diffusion goes down the concentration gradient, so it makes sense that as the levels of solute increase so does the rate. For example, when the amount of glucose was 8mM and the number of glucose carriers was 700, the rate was the fastest because the concentration of glucose and protein carriers was greater than any other trial. (Table 1) These trials give a thorough explanation of how facilitated diffusion works and how molecules move down a concentration gradient. It was also found that NaCl did not have an affect on the rate of diffusion of glucose. It was be determined by running a trial with all other variables the same but instead of running deionized water, running NaCl. When comparing the results, the rate of diffusion of glucose remained the same with, or without the
Facilitated diffusion
By: Kelsey Clark
Biology 2401 C1L
Dr. Fanini
October 2, 2017
Facilitated Diffusion Facilitated Diffusion is a type of passive transport that allows for lipid insoluble molecules or molecules that are too large to pass through a membrane. The molecules are able to pass through by binding with protein carrier molecules and moving down the concentration gradient. The rate of diffusion will continue to increase until the carrier proteins are saturated, and at this point the rate will not continue to increase. This is different than active transport because this process does not require ATP. This process is important for multiple systems in the human body. The purpose of this experiment is to show that some …show more content…
In Table 1, as the amount of glucose increased, the diffusion rate increased as well. Also, as the protein carriers increased so did the rate. With this evidence, it can be proven that the amount of carrier proteins and the concentration of a solute will affect the rate of diffusion. The diffusion goes down the concentration gradient, so it makes sense that as the levels of solute increase so does the rate. For example, when the amount of glucose was 8mM and the number of glucose carriers was 700, the rate was the fastest because the concentration of glucose and protein carriers was greater than any other trial. (Table 1) These trials give a thorough explanation of how facilitated diffusion works and how molecules move down a concentration gradient. It was also found that NaCl did not have an affect on the rate of diffusion of glucose. It was be determined by running a trial with all other variables the same but instead of running deionized water, running NaCl. When comparing the results, the rate of diffusion of glucose remained the same with, or without the