Lab Report INTRODUCTION: This experiment is being done to find out what happens to a carrot or a potato if you place them in two different solutions. Osmosis has a lot to do with this experiment and is the movement of water molecules from a higher concentration to a lower concentration. Osmosis only deals with water and is a type of diffusion. The difference between all three solutions is that in a hypertonic solution the cells fluid rushes out of the cell and causes it to shrivel. In a hypotonic
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Reverse Osmosis For Wastewater Recycling Reusing treated wastewater for beneficial purposes‚ such as agricultural and landscape irrigation‚ industrial processes‚ toilet flushing‚ or groundwater basin replenishment‚ is growing in response to environmental and economic concerns. One of the key factors involved in recycling wastewater treatment plant (WWTP) effluent for another use is the need to reduce total dissolved solids (TDS). This is often done by using a reverse osmosis (RO) system‚ which
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Osmosis in Red Onion Cells By: Youssef Gharib Brief Description of Osmosis in Red Onion cells: Osmosis is the diffusion of water from an area of low concentration to an area of high concentration across a semi-permeable membrane. The purpose of this lab is to compare the three different types of solutions affect on the relative size of the vacuole to the cell‚ the outer membrane of onion red cells (tunics) are used to figure out the different types. In the red onion you can see effects promptly
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Potato Osmosis Introduction: A shipwrecked sailor is stranded on a small desert island with no fresh water to drink. They know they could last without food for up to a month‚ but if they didn’t have water to drink they will be dead within a week. Hoping to postpone the inevitable‚ their thirst drives them to drink the salty seawater. They are dead in two days. Why do you think drinking seawater killed the sailor faster than not drinking any water at all? Today we explore the cause of the sailor’s
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community‚ to investigate how culture changes one’s inner values‚ we have to define some common beliefs‚ just like clothing that has some features that help distinguish its cultural background. People having the same cultural background‚ in general‚ are likely to behave in a similar way‚ because their education and religion background have also cultural elements. It is true that personalities are different for everyone‚ but culture can affect people to a certain degree because it provides an environment from
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The effect of salt concentrations on the mass of the pear cubes ‘Pyrus’ after being soaked in water Aim: The effect of salt concentrations on the mass of the pear ‘Pyrus’ pieces shaped as cubes of 1cm. Background: Osmosis is the net movement of water molecules through a semi-permeable membrane from an area of higher water potential to an area of lower water potential. Water makes up to 70-90% of living cells and cell membranes are partially permeable membranes. Dissolved substances attract
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1. Provide aim and background information 1.1 Diffusion is the process which molecules dissipate into a solution evenly over a period of time. An example is putting sugar in your coffee‚ after a while if you don ’t mix the solution‚ the sucrose will over time‚ go through the process of diffusion and be distributed throughout the coffee. Osmosis is movement of H2O molecules passing through a permeable cell membrane to the less concentrated solution‚ eventually to reach an equivalent number of molecules
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When an employee is hired at a company‚ oftentimes a background check is necessary in order for the hiring process to proceed. Companies check future job candidate’s criminal backgrounds‚ as well as prior job performance. They may also check an employee’s credit. Employers want to know who they are working with before they hire sometimes. In my opinion‚ criminal background checks are definitely necessary. For example‚ employers need to know if the person they are hiring robbed a convenient store
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Student Body? “Background Checks for Students” Introduction: Background checks are conducted to obtain a variety of types of information -- criminal records‚ credit histories‚ previous residences‚ job credentials. Some feel that the extent to which the background check should be depends on the position. For example‚ it makes little sense‚ on the one hand‚ to investigate the credit history of an Anthropology professor. On the other hand‚ failing to investigate the background of a school psychologist
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Include the person’s people group (gender‚ ethnic background‚ cultural background etc..). This date marks the birth of Josiah Henson in 1789. Content should include a brief background of the person? Josiah Henson was born into slavery on June 15‚ 1789 in Charles County‚ Maryland. As a young boy he witnessed slavery’s cruelties inflicted on his immediate family. Young Henson watched his father receive fifty lashes for standing up to a slave owner and then witnessed his father’s ear being severed
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