concentration of sucrose solution on osmosis in a potato. Preliminary Experiments One preliminary experiment was done before the main experiment. From the preliminary‚ we were trying to find out how osmosis actually occurred in potatoes‚ and gave us a vague idea on what the main experiment would be like. This preliminary will aid my prediction‚ which is stated below. The following apparatus was used for the preliminary: * 1 large potato (skin intact) * 3 boiling tubes * Set
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First aid for cuts Cuts and grazes are part of growing up. Small wounds are usually easily treated at home with a little first aid and lots of TLC. The aim of first aid is to promote healing and to minimise the risk of infection. Large or severely bleeding wounds need immediate medical attention as blood loss can lead to falling blood pressure and shock. Home treatment Minor wounds * Wash your hands before handling a wound or wear sterile disposable gloves. * Most minor wounds stop
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Potato Enzyme Lab Enzymes are protein catalysts that speed up chemical reaction in living organisms. The purpose of this lab was to; observe the breakdown of hydrogen peroxide toxin by potato’s enzyme catalase‚ determine factors that influence how quickly the reaction takes place‚ and determine factors that influence how well enzymes function. The first test‚ we were supposed to see what would happen when we add sand in hydrogen peroxide. We filled a test tube with 5mL hydrogen peroxide and we added
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3. Investigating Hierarchy from Below During my dissertation fieldwork‚ staying in two villages of different ranks broadened my experience with hierarchy and knowledge. As Traube (1989) argued‚ the form of cosmogonic knowledge is encompassing‚ rooted‚ comprehensive at the “trunk‚” or the source of hierarchy‚ but remains fragmented‚ partial and shallow at the tips. In Yap‚ the sociology of knowledge takes a slightly different form. Indeed‚ those who grew up in higher-ranking tabinaw are savvier with
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Arizona Immigration Law One of the biggest and most controversial immigration laws that has been passed ever is the brand new Arizona Immigration Law SB1070. It is the new law makes it “a state crime — a misdemeanor — to not carry immigration papers” (NYTimes). It also makes it legal for police to ask citizens for their papers if they reasonably suspect that they may be illegal immigrants. If the person does not have any paperwork and is illegal they will get deported but if they are legal then
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Introduction In this experiment I am going to investigate the effect of varying concentration of a differing glucose solution on the amount of osmotic activity‚ between the solution and a potato tuber of a given size. The purpose of this experiment is to demonstrate how living cells rely on osmosis‚ the diffusion of water. Osmosis is the movement of water molecules (H20) from a region in which they are highly concentrated to a region
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- Body Planes and Sections: 1. Sagittal plane is a vertical plane that divides the body into right and left parts. A sagittal plane that lies exactly in the midline is the median plane‚ or midsagittal plane. All other sagittal planes‚ offset from the midline‚ are parasagittal planes. 2. Frontal planes‚ like sagittal planes‚ lie vertically. Frontal planes‚ however‚ divide the body into anterior and posterior parts. A frontal plane is also called a coronal plane. 3. Transverse or horizontal‚ plane
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OSMOSIS IN POTATO TISSUES Vanessa Tsao‚ Lovette To‚ Wang Yeyun‚ Zhang Shenjia‚ Alicia Mak Class 101‚ Nanyang Girls’ High School‚ 2 Linden Drive‚ Singapore 288683 ABSTRACT In this project‚ the relationship between the concentration of salt solution and the length of the potato strip that was immersed in it was investigated. Five strips of potato of the same length were placed in different Petri dishes that contained water of different salt concentration. They were left for twenty minutes and the length
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Analysis The trend that my graph and results show is that when the potato was placed in a solution that had a higher concentration than the chip itself‚ the potato lost weight (0.4‚ 0.6‚ 0.8 and 1.0 molars). In the same way when the potato chip was placed in a solution that had a lower concentration than itself‚ the potato chip gained weight (0.0 and 0.2 molars). For my results I calculated the percentage gain/loss in weight using the following formulae: Average change in weight/weight at
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change‚ means there is no net loss or gain of water. Introduction This study shares the results of an effort to understand diffusion and osmosis in general. It focused more into osmosis in plants cell‚ and how to indirectly measure osmolarity in potato tuber tissue. Osmosis is the diffusion specifically of water across a membrane. Diffusion occurs when certain substance‚ such as an ion‚ is more concentrated on one side of membrane. If the membrane allows this ion through‚ the ions will move from
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