Planning Aim In this experiment I will be testing the effect of temperature on the plasma membrane of a beetroot. I will do this by measuring the percentage light transmission using a spectrophotometer. Once I have obtained my results‚ I will justify them using scientific knowledge explaining what I have observed whilst carrying out the experiment. Factors to be controlled "« The pH concentration "« Regular use of distilled water "« Ensuring that the surface area of each piece of beetroot is
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Introduction Diffusion and osmosis are two types of passive transport. Diffusion is a random movement of molecules from an area of high concentration to an area of low concentration. Osmosis is a type of diffusion that diffuses water through a selectively permeable membrane. There were two parts to the experiment‚ the dialysis tubing lab and the potato lab. In the first experiment‚ the dialysis tubing acted as a semi-permeable membrane. A semi-permeable membrane is a membrane
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Total CO2 Evolved by Different Concentrations of Convollaria roots. Actual values are the graduated pipette readings. For CO2 evolved values‚ subtract the initial reading from the actual reading. This is the amount of CO2 accumulated over time. | Time (min) | Tube 1 | Tube 2 | Tube 3 | Tube 4 | | Actual | CO2 Evolved | Actual | CO2 Evolved | Actual | CO2 Evolved | Actual | CO2 Evolved | | (A) | (A-I) | (A) | (A-I) | (A) | (A-I) | (A) | (A-I) | Initial reading (I) | 0.05 | | 0
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I have always known that sugar is bad for the body‚ but I am shocked at just how much it actually does. I grew up eating candy and sugary cereals. My main type of soda was Sprite‚ which is slightly healthier for people than Coca Cola and Mountain Dew. As the years went on‚ I started to drink an abundance of Coca Cola and Mountain Dew with my friends when they would come over to hang out. I knew that I should have drank more water than pop‚ but I had no idea what kind of damage so much soda could
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Lab 04: Sugar Respiration in Yeast Sugars are vital to all living organisms. The eukaryotic fungi‚ yeast‚ have the ability to use some‚ but not all sugars as a food source by metabolizing sugar in two ways‚ aerobically‚ with the aid of oxygen‚ or anaerobically‚ without oxygen. The decomposition reaction that takes place when yeast breaks down the hydrocarbon molecules is called cell respiration. As the aerobic respiration breaks down glucose to form viable ATP‚ oxygen gas is consumed and carbon
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THE BREAD OF SALT Characters • BOY – main character of the play (Note: He doesn’t have a name in the story..) • AIDA – object of the boy’s affections • PETE SAEZ – guy who invites the boy to join his band • OTHER BANDMATES – preferably two guys • JOSEFINA AND ALICIA – Aida’s cousins (Note: Maybe we could just mention them instead of adding them to the play? What do you guys think?) Sets Set in 1930s Philippines • Bakeshop • Aida’s House (for the party) •
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populations. The Irish potato clones were certainly low on genetic variation‚ so when the environment changed and a potato disease swept through the country in the 1840s‚ the potatoes (and the people who depended upon them) were devastated.Thesis: The Irish Potato Famine devastated the Irish population and economy as well as sowing the seeds of rebellion against England. 1st Point: Ireland dependent on potato • Families spent most time on cash crops to pay rent • Potato easy to grow‚ nutricious
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Ingredients: 6 ounces of hard margarine or butter oz 6 ounces brown sugar oz 12 ounces of sultana raisens pt half a pint of water oz 12 ounces cake and pastry flour tsp half a teaspoon of nutmeg tsp 1 and a half teaspoons of mixed spice tsp 3 quarters teaspoon of bi-carb soda lg 2 large eggs Method: Line a 7 inch cake pan square or round. Place margarine‚ sugar‚ sultanas‚ and water in a saucepan. Stir over low heat until sugar and margarine have melted‚ bring to boil and boil for 3 mins
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officially ban. Modern audiences have become accustomed to attitudes‚ language‚ and stories that are political‚ graphic‚ violent‚ and more than just a little bit avant garde. Obviously‚ such was not the case in the blacklisting days of the 1950s! “Salt of the Earth” violated every aspect of the white‚ middle-America‚ conservative mindset of 1954. As a political statement‚ it demonstrated the inter-connection that exists between working class‚ feminist‚ environmental and Latino concerns‚ and yet it
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Professor Shannan Lewis-Blair‚ M.S. Submitted By: Kara Hackett‚ Ryan Ritchie & Angie Wagoner Kara_Hackett@pba.edu‚ Ryan_Ritchie@pba.edu & Angie_Wagoner@pba.edu Date of Submission: September 10th‚ 2013 Title of Assignment: Barriers to Concentration CERTIFICATION OF AUTHORSHIP: I certify that I am the author of this paper. This paper was prepared by me specifically for this course. I have also cited any sources from which I used data‚ ideas‚ or words‚ either quoted directly or paraphrased
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