COLLECTION AND PROCESSING CONCLUSION AND EVALUATION RELATIONSHIP BETWEEN SURFACE AREA AND THE VOLUME OF A CELL‚ HOW IT AFFECTS THE RATE OF DIFFUSION Nazirul Ibrahim 04.10.2011 DATA COLLECTION AND PROCESSING We have determined the following variables: * dV- the time for the color indicator phenolphthalein to reach the center of the cube (diffusion) * iV- the size of the cube * cV- the amount of Sodium Hydroxide the perfect dimensions of the cube‚ how the cube is fully submerged
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METROPOLITAN AREAS‚ ENTREPRENEURIAL COMMUNITIES AND THE DIFFUSION OF VENTURE CAPITAL INVESTMENTS: SOME DESCRIPTIVE STATISTICS 1. Introduction The development of metropolitan areas is likely to depend‚ among other things‚ on the development of their entrepreneurial communities. However‚ our understanding of entrepreneurial communities worldwide is limited. In the following chapter‚ we begin to fill this gap by providing data on the development of entrepreneurial communities around the
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The Effect of Molecular Weight on the Rate of Diffusion of Potassium permanganate (KMNO4)‚ Potassium dichromate (K2Cr2O7) and Methylene blue ¹ ABSTRACT The effect of molecular weight on the rate of diffusion was determined using the Agar-water Gel Test. One drop of potassium permanganate (KMNO4)‚ potassium dichromate (K2Cr2O7) and methylene blue were used. Each substance has a respective molecular weight of 158 g/mol‚ 294g/mol and 374 g/mol. The diameters (in millimeter) were measured
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Between the Rate of Diffusion and Molecular Weight as Observed in Postassium manganate‚ Potassium dichromate‚ and Methylene Blue Elisha Padilla Group 3 Sec. X – 8L March 26‚ 20151 ABSTRACT The relationship between the rate of diffusion and the molecular weight of a substance was determined by introducing three substances (KMnO₄‚ K₂Cr₂O₇‚ C₁₆H₁₈N₃SCl) of different molecular weight to agar-water gel‚ and measuring the distance of diffusion every three minutes for
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Introduction The movement of molecules from an area of greater concentration to an area of less concentration is called Diffusion. Osmosis is the diffusion of water through a selectively permeable membrane from an area with greater concentration of water to an area with less concentration. A Hypertonic Solution is a solution of a higher concentration of solutes and a smaller concentration of water molecules than another solution. However‚ an Isotonic Solution is a solution that contains an equal
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Enzymes are proteins which serve to reduce the activation energy required for biological reactions (Russell and others 2010). This allows biologically important chemical reactions to occur rapidly enough to allow cells to carry out their life processes (Russell and others 2010). Enzymes are made of one or more polypeptide strands‚ which individually or as an associated complex take on a three-dimensional shape. When properly associated‚ these shapes form the active site and other supporting structures
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will become hypotonic and swell up as the time increased. “Diffusion is a passive process in which the random mixing of particles in a solution occurs because of the particle ’s kinetic energy “(Allen C. 2006)‚ and is subjected to detect the presence of each of the substances given in the biochemical testing‚ the increase in temperature‚ and different reagent used are some aspect that could cause the difference of diffusion in certain solution. It was clear that the protocols Glucose‚ Albumin
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Lab 1: Introduction to Science Exercise 1: Data Interpretation Table 4: Water Quality vs. Fish Population Dissolved Oxygen (ppm) 0 2 4 6 8 10 12 14 16 18 Number of Fish Observed 0 1 3 10 12 13 15 10 12 13 Questions 1. What patterns do you observe based on the information in Table 4? 2. Develop a hypothesis relating to the amount of dissolved oxygen measured in the water sample and the number of fish observed in the body of water. 3. What would your experimental approach be to
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Placement Biology ® AP Biology Lab 1 281 EDVO-Kit # Storage: Principles & Practice of Diffusion & Osmosis Store entire experiment at room temperature. EXPERIMENT OBJECTIVE The objective of this experiment is to develop an understanding of the molecular basis of diffusion and osmosis and its physiological importance. Students will analyze how solute size and concentration affect diffusion across semi-permeable membranes and how these processes affect water potential. Students will also
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The Effect of Temperature on the Rate of Diffusion Damsel C. Bangcal Aira May V. dela Cruz Jacqueline L. Lacuesta Richelle Jem P. Jobog Group 1 Section U-2L November 17‚ 2014 ___________ 1A research proposal submitted in partial fulfillment of the requirements in General Biology I Laboratory under Proj. Joan O. Adajar‚ 1st semester‚ 2014-2015. INTRODUCTION Molecules undergo constant motion and move in regions with a higher concentration to a lower concentration
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