“Cell Transport Lab” Hypothesis: I hypothesis that there will be a movement of molecules out of the egg‚ and will move into the water solution. Osmosis will occur within the egg‚ and in the process the molecules of the egg will diffuse. Time (hrs) | Observations | Circumference (cm) | * 0 | * Egg is of normal weight and size * No membrane is being shown‚ and is almost perfect | * 14 centimeters | * 24 | * Egg has gotten larger taking in some of the water * Shell is soft
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a) The table above helps us to understand why larger organisms need to become multicellular rather than just increase the size of their cells. The information in the table shows that as an organism gets larger in size‚ its surface area to volume ratio will decrease. However‚ the smaller the organism is‚ the greater its surface area to volume ratio will be. A small uncellular organism would have a large surface area in which diffusion (the movement of molecules) can take place. Diffusion is essential
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I need to control the algae bloom that occurs in my Fish tank. When the algae bloom‚ it alters the PH balance and is very damaging to fish kept in an aquarium. I already have one of the best filter systems and still the algae grow out of control at times. I need help with this issue. There are fresh water fish in the fish hobbyist community known as algae eaters. I have narrowed my research to two algae eaters‚ the Chinese algae eater and the Plecotomus Fish from South America. The algae eater
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Can We Bridge the Digital Divide? Jessica Montgomery INF 103: Computer Literacy Instructor Murray Denton April 15‚ 2013 What is the Digital Divide? The Digital Divide is a line that separates those that have access to technologies such as computers‚ cell phones and internet‚ from those that have no access or limited access to such technologies. This divide is mostly prevalievnt in third world countries‚ but is not uncommon in the United States. While the United States has the technology
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Digital Divide The Digital Divide is “the state of inequality that exists between people who have access to modern information technology and those who do not‚ since the former have many more opportunities open to them than the latter‚” (2008). Some argue that this gap is shrinking in the U.S. due to public access and mobile devices. Online learning is also a catalyst in bridging the gap‚ but the question remains; how will those who need it most gain the access they need? While this is a global
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HOW MUCH LAND DOES A MAN NEED Leo Tolstoy by Mikhail Nesterov‚ 1906 | Author | Leo Tolstoy | Original title | "Много ли человеку земли нужно?" | Country | Russia | Language | Russian | Genre(s) | Short Story | Publication date | 1886 | "How Much Land Does a Man Require?" is an 1886 short story by Leo Tolstoy about a man who‚ in his lust for land‚ forfeits everything. ------------------------------------------------- Synopsis The protagonist of the story is a peasant named
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How Can The Digital Divide Affect Cyber Bullying? By Robert Foster EDU 218-602 Technology For Teachers Today’s Technology The Good and The Bad It is no secret that we live in a growing age of technology. Mailing letters and making phone calls on pay phones is a thing of the past. The use of computers‚ cell phones‚ mp3 players‚ and tablets‚ all with access to the World Wide Web‚ is the norm now. We are training our children as early as four and five years old about how to use many of these
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EXPERIMENT 5 GAS DIFFUSION COEFFICIENT OBJECTIVES: Determine the gas diffusion coefficient of acetone using the established Winkelmann’s method KEYWORDS Diffusivity‚ Gas Diffusion Coefficient‚ Winkelmann’s method OVERVIEW The knowledge of physical and chemical properties of certain materials is important because very often process engineering deal with the transformation and distribution of these materials in bulk. One such property is diffusivity. Mass transfer by diffusion takes
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In the experiment‚ as the size of the cube decreased‚ the absorption rate increased‚ showing that the smaller cells absorbed more sodium hydroxide than bigger cells. The smaller cells were able to absorb more sodium hydroxide as they have a bigger surface area to volume ratio causing them to act more efficiently than the bigger cells. The smallest cell had a ratio of 1:12 while the biggest cell had a ratio of 1:2‚ leaving a gap of 5:12 causing the bigger cell to act less efficient in absorbing the
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Planning AIM Beetroot cells contain a red pigment‚ which is stored in the cell vacuole and a vacuole membrane to prevent this leaking out of the cell surrounds it. The outer of the cell is also surrounded by a membrane‚ which again helps contain the pigment inside the cell. In this experiment I aim to find out the relationship between the leakage of red pigment from a beetroot cell and the surface area. To do this successfully I will need to alter the surface area of the beetroot cells accurately and then
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