IndexDiscussionConclusionReferencesDiscussionThis experiment consists of analyzing renal filtration using a simple filtration system. In this experiment, proteins, glucose and starch were used as tested substances. The procedure is repeated as the first experiment served as the standard solution for the second experiment. Say no to plagiarism. Get a tailor-made essay on "Why Violent Video Games Shouldn't Be Banned"? Get Original EssayOne of the test tubes is special, it was test tube 4. It was used as the standard test tube and test tube solution. Among the substances tested, some compounds passed through the filter paper while others did not. Proteins and glucose can pass through the filter paper but starch cannot pass through the filter paper. Starch was a large molecular compound, so it could not pass through the filter paper which was semipermeable. Proteins and glucose could pass through the filter paper because they were smaller than starch. The results were observed and recorded after the experiment. The color of the intensity before and after filtration is different. The color was different because the filtrate was more or less than the substances tested before filtration. The observed color is similar for the substances before and after filtration, it would be difficult to judge the color. To achieve greater accuracy, you need to use a color chart to judge. The filtration experiment was like kidney function. The substances tested were molecules in the kidney that were supposed to filter out. The filter paper was semipermeable, similar to the renal membrane, which is also semipermeable. The color intensity of the tube before and after filtration indicated the substances or molecules in the kidney necessary for filtration. The nephron is the basic functional unit of a kidney. Each nephron consisted of Bowman's capsule, glomerulus, proximal convoluted tubule, loop of Henle, distal convoluted tubule, and collecting duct. The glomerulus was a network of capillaries enclosed by Bowman's capsule. The afferent arteriole supplied blood to the glomerulus, the efferent arterioles transported blood from the glomerulus to the second capillary network surrounding the proximal convoluted tubule. The proximal convoluted tubule reabsorbs ions, water, and nutrients. The Henle Bend has a descending section and an ascending section. The descending branch of the Loop of Henle is permeable only to water, the water will be diffused by osmosis but the sodium, potassium and chlorine ions will not be actively pumped. The ascending branch of the Loop of Henle is permeable only to salt, sodium, potassium and chlorine ions were actively pumped out but water was not diffused by osmosis. Water, sodium ions, potassium ions and chloride ions were diffused into the vasa recta and carried away. The distal convoluted tubule reabsorbed NaCl and HCO3-, potassium ions and hydrogen ions were actively pumped out. The collecting duct reabsorbed water by osmosis, and the amount of water was regulated by antidiuretic hormone (ADH). Mammals needed to get rid of excretory products because if the waste products remained in the cells, they could be toxic or poisonous to the cells. Please note: this is just a sample. Get a custom paper from our expert writers now. Customize essayConclusionThe experiment of the filter system like the filter system in the kidneys may not be accurate. The color intensity before and after filtration was too similar, so the color intensity could be judged incorrect. The experiment should be repeated a few times and use a color chart for 183-189