experiment‚ we had to demonstrate the process of osmosis using potatoes‚ and to determine the concentration of the cytoplasm of the potato. To demonstrate this‚ we had 6 test tubes and poured in different sucrose solutions of the following concentrations: 0.0M‚ 0.1M‚ 0.2M‚ 0.5M‚ and 1.0M. Once added in with all the sucrose solutions‚ we added in the 6 cylindrical potatoes of equal diameter and length. Before and after putting it in the potatoes‚ we had to weigh the initial and the final mass of each potato
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com/SeventhScienceWork/CellsOrganization.htm) Purpose: to observe and measure the process of osmosis in living cells‚ qualitatively and quantitatively. Materials: red onion cell‚ slides‚ coverslip‚ compound microscope‚ 4% salt solution‚ distilled water‚ potatoes‚ beakers‚ balance‚ paper towels Procedure: Part A Qualitative Observations of Osmosis 1. Make a wet mount of a small‚ thin piece of purple epidermis from a red onion bulb’s leaf scales. 2. Photograph and label what you observe under high power
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Nov 19/12 Solute Concentration of Potatoes Block 2-2 Purpose: To determine the concentration of solute in the potato’s cytoplasm by measuring the change in mass after the process of osmosis. Materials and Equipment: Refer to Biology 12 Lab Manual – Investigation 13 Procedure: Refer to Biology 12 Lab Manual – Investigation 13 Data and Observations: The Potatoes change in mass after the process of Osmosis Test Tube # | Concentration
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Name: ____Justine Basilone___ Osmotic Regulation Virtual Laboratory Biology Go to the following virtual laboratory: http://www.glencoe.com/sites/common_assets/science/virtual_labs/LS03/LS03.html Answer your questions in this word document‚ save the file and submit through Edmodo. Your answers should be at least 2 complete sentences if not more! Part I: Observations & Data: Read the Introductory information and the Procedure located in the window to the left of the screen and
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Healthy living is many things. It’s not being the skinniest person ever‚ nor is it being fat. It’s eating enough‚ eating proper food and exercise regularly. Of course‚ I think it’s okay to sometimes eat some chips or take a glass of cola‚ but not all time. Encourage to do physical activity is harder to some than it is to others. For some‚ it’s the easiest thing to go to the gym‚ or start jogging‚ while others can’t get themselves started. And I know a lot a people who don’t understand that. If
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Salt-and-Vinegar Potatoes From Cook’s Country | August/September 2012 Share Email Print Shopping list Add to favorites WHY THIS RECIPE WORKS: Cooking small red potatoes in a super-saturated salt solution creates an incredibly creamy‚ well-seasoned potato interior. After the potatoes are par cooked‚ we “smash” them to expose some of the potato flesh‚ brush them with malt vinegar‚ and roast them on a well-oiled sheet pan until the… read more Roasted Salt-and-Vinegar Potatoes Making crispy potatoes that are
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The effect of environmental factors such as temperature‚ osmotic pressure‚ oxygen concentration and pH on microbial growth and survival Abstract: Microbial growth can be affected by different environmental factors such as temperature‚ osmotic pressure‚ oxygen concentration and pH. Six experiments were carried out in this report testing for microbial growth against different environmental factors. Good aseptic techniques were used to prevent contamination‚ resulting in a uniform set of results
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responsibility in maintaining standards‚ said Roberts‚ the faculty co-chair for the Board of Judicial Affairs‚ in an interview after the panel.) Instead‚ panelists linked cheating to the social pressure put on students to prize high grades over education and other values‚ including creativity and imagination. Pressure by parents and schools to achieve top scores has created stress levels among students—beginning as early as elementary school—that are so high that some educators regard it as a health epidemic
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Module EG1083 Fluid Mechanics PRESSURE ‚ FLUID SYSTEMS and FLUID PRESSURES SM(1) Pressure Definition of Pressure Fluid pressure: Force per unit area exerted by a fluid in a solid wall. Force acts perpendicularly to the surface in contacts. Fluid is a co u d s common word for gas a d/o liquid. o od o and/or qu d Pressure is a scalar quantity. It has the units of: N/m2 or Pa (or kPa) in SI system of units psi in Imperial system of units Pressure can also be expressed in terms of height
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Pressure Today in our modern society cheating in school is growing at a rapid rate‚ but who is to blame‚ is it the school system is it students or is it the teachers. I strongly believe that it is not only the student’s fault but the school systems as well. To begin‚ cheating among students has rapidly increased. The numbers are crazy; statically 2 out of every 3 kids have cheated on a test‚ homework‚ ect. “Cheating in school is rampant and getting worse 64% of students cheated on a test in the
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