Diffusion and Osmosis lab Results: Figure 1a-rate of weight change in 15 min intervals of each concentration. The first tube showed very little weight change. However all other tubes show a greater change the concentration could be the factor that determines the permeability of the sucrose. The sucrose molecules are too large to pass through. Figure 1b- sucrose concentration determines the weight change. In this case based on our results as concentration increases the percent weight change
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to live‚ they take the necessary O2 from the atmospheric air. The O2 is transferred from the blood to all cells of the body and serves for oxidation of nutrients for example glucose. By oxidize the nutrients released energy‚ which is necessary for the functions of the human body. During oxidation produces CO2‚ which in high concentrations is harmful to the human body. CO2 is transferred from the blood to the lungs‚ where is exhales. The intake O2 and the parallel elimination of CO2 in the lungs
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Introduction A computerized simulation experiment will be conducted in order to study the cell transport mechanism via the cell’s selectively permeable membrane and passive processes of simple and facilitated diffusion. The plasma membrane is a gateway which allows nutrients to enter the cell and keep undesirable substances out‚ hence‚ making it selectively permeable. One method of transport is called active transport‚ which uses ATP to transport substances through the membrane. The other is
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Cell: The cell is the basic structural‚ functional and biological unit of all known living organisms. Cells are the smallest unit of life that is classified as a living thing‚ and are often called the "building blocks of life". Discoverer: The cell was discovered by Robert Hooke in 1665. The cell theory‚ first developed in 1839 by Matthias Jakob Schleiden andTheodor Schwann‚ states that all organisms are composed of one or more cells‚ that all cells come from preexisting cells‚ that vital functions
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Introduction The purpose of this experiment was to demonstrate osmosis. Osmosis is the diffusion of water across a selectively permeable membrane (Bell et al 2004). Osmosis is the movement of water molecules from an area of high concentration to an area of low concentration (Brown 1999). Hypertonic is the solution with a higher salt concentration. Hypotonic solution is the solution with the lower salt concentration. My hypothesis is that the potato core will increase in size. When the solution is
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1. Running Heading: BLOOD DISORDERS Blood Disorders Athena Hackett Health and Diseases: Understanding Paths and Pathology June 20‚ 2010 Dr. Natasha Billups In each scenario provided each person is at risk of a specific disorder. The first patient Amy‚ who is the four year old Caucasian female‚ in my opinion is at risk for the blood disorder of Iron Deficiency Anemia. Next is person at possible risk of a specific blood disorder is Marcus. Marcus is a five year old African American
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The Red Panda comes from the family of Ailuridae and its scientific name is Ailurus Fulgens. The Red Fox‚ whose scientific name is Vulpes Vulpes‚ is from the Canidae family. They are both mammals and are the same size. However‚ the Red Panda and the Red Fox share similarities and differences in their appearance‚ habitat‚ diet‚ behaviour‚ reproduction and status of population. First of all‚ the Red Panda and the Red Fox are quite similar but a little different in their appearance. Like the Red
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three main parts of a cell. plasma membrane-forms a cell’s flexible outer surface‚ separating the cell’s internal environment (inside the cell) from its external environment (outside the cell) cytoplasm- consists of all the cellular contents between the plasma membrane and the nucleus. nucleus- is the largest organelle of a cell. The nucleus acts as the control center for a cell because it contains the genes‚ which control cellular structure and most cellular activities The cell is the basic‚ living
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following statements is true? A. Blood is an organ B. Blood is a connective tissue X C. Blood is composed of living cells only D. None of the above 2. Which of the following would be considered a normal hematocrit? A. 45% X B. 35% C. 85% D. 10% 3. Which of the following cells does not contain a nucleus? A. Monocytes B. Lymphocytes C. Erthyrocytes X D. All of the above 4. Which of the following is a function of blood? A. Distribution of gases‚ wastes
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2.3. Membranes and modules for forward osmosis: 2.3.1. FO Membranes Generally‚ any dense‚ non-porous‚ selectively permeable material can be used as a membrane for FO. Such membranes have been tested (in flat sheet and capillary configurations) in the past for various applications of FO. In early studies‚ the researchers applied various FO membrane materials‚ including bladders of pigs‚ cattle‚ and fish; collodion (nitrocellulose); rubber; porcelain; and goldbeaters’ skin [36]. By 1960‚ Loeb and
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