#1 Custom Essay Writing Service. We have over the years amerced a great deal of experience in custom essay writing and as such, you can rest assured that you will receive a high-quality product that is % original and free of plagiarism 1 day ago · Argumentative essay on gun control in schools knowledge leads to success essay, essay on topic health and hygiene janmashtami essay in hindi easy, education is the best investment for the future essay zoo park essay in english pay equality essay osmosis case study princeton university supplemental essays examples how to start a good Osmosis and diffusion are related because they involve moving of molecules from a region of higher concentration to lower concentration without requiring energy to reach equilibrium resulting in a stabilized solution. However, osmosis will only move water molecules while diffusion will move particles/substances. Unknown # 10 Essay Words
Difference between osmosis and diffusion - Questions House
The cell membrane surrounds the cell and is responsible for the regulation of substances within the cell. There are many processes in which substances can travel through the membrane, one being osmosis, osmosis essay. Osmosis is a form of passive transport no energy required and is a type of diffusion in liquid substances. It is the transport of water molecules through the semipermeable section of the membrane from areas of low to high solute concentration Figure One, osmosis essay.
Osmosis helps maintain provide support in a plant cell. Water is attracted to the salt in cells and travels to where there is more salt to balance the levels. Therefore, osmosis essay, the three states of an environment hypertonic, hypotonic and isotonic determine the movement of water across the membrane [1].
For instance, if the water inside the cell is hypotonic compared to the extracellular environment, then water will travel into the cell by osmosis. When the water inside the cell is hypertonic compared to the extracellular environment, water osmosis essay out through osmosis.
If both areas are isotonic then both solutions will continue to remain balanced, osmosis essay. If the salt solution concentration is increased, then the potato will experience a larger decrease in mass due to the occurrence of osmosis.
The dependant variable was the rate of osmosis measured by the average percentage change in mass. Observations: Texture of potato became spongier after the occurrence of osmosis. Water became slightly cloudy and starchier. The overall trend showed the salt solution with higher concentration to experience a greater rate of osmosis resulting in a larger decrease in mass apart from the end of the individual graph, which would suggest a random error to have taken place.
Both sets of data showed solutions with higher concentration is hypertonic compared to the potato cells meaning the water would travel to the osmosis essay because it contained more salt. Evidently, the rate of osmosis in solutions with less salt were of a lesser extent because the water from the potato cells were less attracted. Hence why both the individual and class data indicated a gain in the potato mass.
These results were represented in the negative linear trend in the graph Figure Three. The osmosis practical posed osmosis essay situation where the potato cell and solution were in an isotonic state, osmosis essay, however, it could be predicted that no overall net movement would occur, and the potato mass would stay the same.
It is important to keep all controlled variables the same across all salt solutions to produce accurate data, osmosis essay. If variables differ among the solutions then results would be influenced, osmosis essay, producing inaccurate data. Various errors can be encountered in a practical way that can influence results, making them differ from the true answer.
There were 10 sets of data undertaken that were all similar, osmosis essay, comparing the individual data with the line of best fit from the class data Figure Five can show where random errors may have occurred, osmosis essay. If the entire set of data was to be moved but have a similar shape in the line of best fit, then it could be determined that a systematic error was of osmosis essay. A random error met was the slight difference in the size of potato cubes.
A human cannot cut all potato cubes with precision, having the same osmosis essay and dimensions across all cubes. Although only a slight difference occurred with cubes ranging from 8. This could be improved by using technology osmosis essay can be relied on to osmosis essay all cubes with precision.
The accuracy of a human starting the stopwatch at the exact time the potatoes were submerged is unreliable because of their reaction time.
The inaccuracy of time can result in some cubes being submerged in the solution for longer and allows time for more osmosis to occur, meaning the mass will be invalid. For accurate timing, technology could be used to start and end exactly when the cubes are submerged and taken out.
Another random error present was the excess water removed after the occurrence of osmosis, osmosis essay. Drying the cubes with a paper towel could not be the same across all cubes and could remove different amounts of water from each cube. This would change the mass because the cubes with less water soaked up, would have a heavier mass.
The systematic errors encountered in the practical included the calibration of equipment such as the stopwatch under the assumption that it was already working, causing invalid data. Environmental effects such as the temperature of the lab, the potato cell concentration, and the potato age are systematic errors that can be present in the practical. It was determined by testing potato cubes in salt solutions with different concentrations, that when the salt solution concentration was increased, the potato experienced a larger decrease in mass due to the occurrence of osmosis.
The hypothesis was supported by the individual data Figure Two and where errors occurred, the true value was supported by the class data. Some limitations in the experiment were present such as the limited equipment such as technology that could have improved the precision, resulting in inaccurate data, and the inability to repeat the experiment, lowering the validity and reliability of the data gained.
Osmosis — an overview ScienceDirect Topics Diffusion and Osmosis — Difference and Comparison Diffen osmosis essay Accessed: osmosis essay March If we have helped you, please help us fix his smile with your old essays it takes seconds!
Tutor and Freelance Osmosis essay. Science Teacher and Lover of Essays. Article last reviewed: St. Rosemary Institution © Creative Commons 4. Skip osmosis essay content. Effect of Salt Concentration on Osmosis in Potato Cells Lab Answers, osmosis essay. Figure 1 AIM To determine the effect of salt concentration has on the rate of osmosis. Controlled Variable Why How Duration of potatoes in salt solutions. If the timing was inconsistent then results would become unreliable and incomparable due to the osmosis essay results.
If some potatoes were left in the solution for longer then more osmosis would occur and if potatoes were left for a shorter time, less osmosis would occur. The timing of potatoes in the salt solution can be kept consistent with the use of a stopwatch and leaving the potato cubes in the solution for only 20 minutes, osmosis essay.
Size The dimensions and mass had to be consistent among all potatoes or the SA:Vol ratio would be different resulting in faster rates of osmosis, providing inaccurate data, osmosis essay.
The dimensions and mass were kept similar by using a ruler to adjust the dimensions of the potato cubes and weighing them all to ensure a similar mass. The volume of salt solution can be controlled by using a measuring cylinder to maintain accurate results. The solution should be measured on a stable, flat bench. Type of potato If the potatoes are different types, then the salt will be varied in the potatoes.
If the salt level is different then it will affect the rate of osmosis creating a random error in the data, osmosis essay.
Osmosis essay same variety of potatoes should be used for all testing to have the same salt level, keeping the data consistent. Find out More. Related Posts Copper Penny to Silver Lab Answers Purpose: Find silver produced and compare to predicted.
Phet Projectile Motion Lab: Lab Answers Introduction This lab will answer whether or not initial speed affects the time that a…. Beer's Law Lab Explained: Absorbance vs. Newest Oldest Most Voted. Inline Feedbacks. Fankie W. ATTENTION: If we've helped you, please give back. Help us feed and clothe children with your old homework! It takes seconds! The dimensions and mass had to be consistent among all potatoes or the SA:Vol ratio would be different resulting in faster rates of osmosis, osmosis essay, providing inaccurate data.
If the potatoes are different types, osmosis essay, then the salt will be varied in the potatoes. The use of knives and peelers should be taken proceeded with caution. Full attention should be given osmosis essay dealing with the sharp object and should be faced away from the user.
If the salt solution was to be spilled it could cause people to fall over. Due to the heaviness of the salt solution bottles, the user should make sure to pour on a stable bench and maintain a good grip on the container.
If any substances are spilled the user should alert surrounding people and clean the spill up before continuing the practical. To prevent breakage and having sharp glass the user should take caution when transporting glassware. Glass should be used on a stable bench to prevent it from falling.
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ADVERTISEMENTS: The following points highlight the top six experiments on osmosis in plants. Some of the experiments are: 1. Demonstration of the Phenomenon of Osmosis 2. Demonstration of Osmosis by Osmoscopes 3. Demonstration of Plasmolysis and Determination of Isotonic Conc. of the Cell Sap 4. Determination of Osmotic Pressure of Integrated Plant Tissues and Others. [ ] 1 day ago · Write an essay on swachh bharat abhiyan in words. Short essay on patriotism in hindi answers sample Ielts essay does the university of south carolina require the sat essay. Abstract covers all major parts of the research paper in order to osmosis case study too little too late answers how to write an essay about the internet Osmosis Egg Lab Report OBJECTIVE OF THE EXPERIMENT The experiment is aimed at giving a better understanding of osmosis process and the different experiment conditions under which osmosis occurs. INTRODUCTION Osmosis is a process whereby water or any fluid moves from the area of less
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