concept and meaning of pH 2. Provide the student experience in measuring pH a. pH testing paper 3. Test the student’s hypothesis as it related to the pH of common solutions Hypothesis The pH of the tested solutions will be in the order of the following according to a pH scale: 1. Lime juice 2. Orange juice 3. Soda 4. Iced Tea 5. Milk 6. Water 7. Soapy water Material Required To facilitate this laboratory exercise‚ the experimenter needs the following: pH strips Sample reservoirs
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Cellular Energetics: The Rate of Cellular Respiration and Photosynthesis over Time Among Various Variables By: Ethan Barnett Introduction Cellular Energetics is the broad term that encompasses both cellular respiration and photosynthesis and refers to how energy changes and reacts within cells. Cellular respiration is the process by which cells break down sugars (ATP) in order to produce energy for other chemical reactions. Cellular respiration takes place mainly in the mitochondria and the reactants
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The Effects of pH on Slime Mold Dg Nicole Harris BIOL181 – 059 1 December 2011 The theory that slime mold is attracted to acidic solutions was examined by the slime mold‚ Dg. Dg’s preference of pH was examined by using a variety of pH solutions in a petri dish. The data suggests that the growth of fruiting bodies observed in pH 9 was comparable to that of pH 4. INTRODUCTION The 2002 scientific journal‚ “The Costs and Benefits
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IB Home Standard Level Higher Level Options Additional Resources 8.2 Photosynthesis 8.2.1 Draw and label a diagram showing the structure of a chloroplast as seen in an electron micrograph 2D Representation 3D Representation Electron Micrograph 8.2.2 State that photosynthesis consists of the light-dependent and light-independent reactions Photosynthesis is a two-step process: 1. The light dependent reactions convert the light energy into chemical energy 2. The light
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Does the PH level of acids in our stomach affect the digestion proteins? Yes‚ if the acidity in my/a stomach is high in terms of the PH balance then the proteins in our stomach will be digested faster because acids are known to breakdown and eat away at many objects. The purpose of this project was to observe how the digestion of protein varies at different pH levels. This project in my eyes helps society by finding the best types of food (i.e. ones with higher/ lower acidity and pH balance)
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Microorganisms Anaerobic respiration takes place in yeast and some bacteria‚ producing ethanol and carbon dioxide. They have been used in the making of many foods such as bread‚ yoghurt and vinegar‚ Lactic acid bacteria are the key ingredient in yogurt production as they they initiate the fermentation process. Many of the species used in yogurt provide added health benefit to those who eat them regularly and are often referred to as probiotics. Probiotics are believed to strengthen your immune
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How is the increasing rate of unemployment affecting the youth of South Africa? 1. Introduction A major problem in South Africa is the large number of young persons who are unemployed. In South Africa 50% of the South Africans who don’t have jobs‚ are youngsters. Today‚ a matriculation qualification is not enough to get a job in this country‚ even having a degree does not necessarily guarantee employment. South Africa has an acute problem of youth unemployment that requires a multi-pronged
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Paper 1 Chapter 1: Cell structure May/June 03 1 An actively growing cell is supplied with radioactive amino acids. Which cell component would first show an increase in radioactivity? A Golgi body B mitochondrion C nucleus D rough endoplasmic reticulum 2 Which pair of organelles has internal membranes? A chloroplasts and mitochondria B chloroplasts and nuclei C mitochondria and ribosomes D nuclei and ribosomes 3 Which combination is found in a prokaryotic cell? Endoplasmic reticulum DNA RNA Nucleus
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P.H. Meredith Hamilton Biology- Westover September 30‚ 2011 Abstract The question of this study pertained to the amount of vegetation that was occurring on each of the succession plot’s ground floor. There are three successional plots in Winthrop University’s wooded areas‚ the oldest was created in 1989 the second was created in 1994 and the youngest plot was created in 1999. For the hypothesis to be tested‚ there were soil PH meters to test the amount of PH in each plot’s soil. The hypothesis
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Independent University‚ Bangladesh Admission Test (Sample) Math-Physics (Engineering) Total Marks: 50 Name Instructions: a) Turn-off all mobile communication devices (cell-phones‚ PDAs‚ laptops‚ etc.) b) There are 25 (twenty five) problems. You have to attempt all of them. c) Each problem has 5 (five) possible answers. Choose the correct answer‚ and fill the appropriate oval on the answer sheet. d) There is no negative marking. e) Do not fill more than one oval for any problem. f) It is preferable
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