Surface Area to Volume Ratio and the Relation to the Rate of Diffusion Aim and Background This is an experiment to examine how the Surface Area / Volume Ratio affects the rate of diffusion and how this relates to the size and shape of living organisms. The surface area to volume ratio in living organisms is very important. Nutrients and oxygen need to diffuse through the cell membrane and into the cells. Most cells are no longer than 1mm in diameter because small cells enable nutrients and oxygen
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Diffusion of Innovations Theory Categories of adopters: According to the adoption curve by Everett Rogers‚ the individuals in a given social system can fall in any of the following five categories of adopters which are namely innovators‚ early adopters‚ early majority‚ late majority‚ and laggards. Innovators: Innovators who are often experienced‚ wealthier and/or highly educated people are brave and creative. According to Rogers‚ innovators accounts for about 2.5% of the population. They are attracted
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Most major countries have been subject to cultural diffusion‚ and Japan is no exception. During the 7th Century and onward‚ many countries had an effect on Japan‚ and the country with the most influence was undoubtedly China. However‚ Japan gradually developed these influences into their own styles‚ whether in art‚ government‚ language‚ or architecture. While Japanese art was heavily influenced by China‚ it became more unique as time went on‚ and this can be shown through painting‚ writing and literature
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diffused at a higher temperature. Temperature can also affect the rate of diffusion because a higher temperature will cause molecules to move faster and increase the rate of diffusion‚ allowing more pigment to pass through the membrane‚ in the 5 minutes given‚ giving a more pink/red color to the water surrounding the beetroot at a higher temperature‚ and at lower temperatures slowing down the molecules and making the rates of diffusion lower in colder temperatures‚ giving it a paler appearance. This explains
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able to receive the nutrient in the 1 cm cell and almost all of them in the 0.5 cm cell. This is caused due to the larger surface area to volume ratio as the cell size depends on the efficiency of the material to flow in and out through diffusion. Through diffusion‚ the organelles in the cell receive all the vitally needed nutrients to survive. If there is a big surface area to volume ratio such as 1:2‚ then this process will be delayed due to the sodium hydroxide having to cover a larger distance
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Problem Question: * What effect does temperature have on the rate of Diffusion? Hypothesis: If we put the antacid in hot water‚ then it will dissolve faster than in cold water or room temperature water. Material List: * One thermometer * 3 beakers (of the same size) * 3 antacid tablets * Cup of ice * Hot plate * Paper towels * Water Procedures: Step 1: Gather materials Step 2: Label the beaker #1‚ #2‚ and #3 Step 3: Fill each beaker with the same amount of
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Diffusion of Hydrochloric Acid into Different Sizes of Agar Blocks Aim: Investigating the relationship between the diffusion and the surface area to volume ratio‚ with agar and hydrochloric acid. Research Question: How does the difference in surface area to volume ratio affect the diffusion? Hypothesis: As the area to volume ratio increases‚ the time taken for a complete diffusion will also increase. Background Information: Agar is a jelly like substance and in this experiment‚ agar
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The change theory that could work for this proposed programme would be Rogers’ theory of ‘Diffusion of innovation’ and Lewin’s (1951) ‘Force Field Analysis’ (FFA). Rogers’ theory of Diffusion of innovation is the process of innovation communicated with participants to create and share information with one another in order to reach an equal understanding over time (Rogers‚ 2010). Rogers’ (2010) theory involved events when the change agent seeks to persuade a client to adopt an innovation. In relation
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Factors that Affect Diffusion Biology The aim of this investigation is to prove the effect of increasing size on the efficiency of diffusion. Diffusion is the process that cells use to obtain oxygen‚ water and food. Also‚ how they lose waste substances‚ for example‚ urea and carbon dioxide. Basically‚ Diffusion is when particles move from an area of high concentration to an area of low concentration. The surface area to volume ratio of the cell is an important factor in diffusion. It is the effect
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Introduction According to Erikson’s (1950) identity versus role diffusion‚ “adolescents must develop a sense of who they are and where they are going in life or they become confused about their identity” (p. 214). A great portion of who I am today has been affected by the years of my adolescence between the ages of eleven to twenty years of age. This time period of my life was crucial as I struggled to figure out who I was and why my life turned out the way it was. Being abandoned at the age of three
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