3) Slide 3: Why is the nucleus of the cell in slide 3 so large? In other words‚ what is this cell doing that requires that its nucleus be so large? (Please be specific). In eukaryotic cell in slide #3 has organelles including a nucleus containing DNA and mitochondria energy organelles .Compared to the prokaryotic cell which has the DNA in the cytoplasm smaller and simpler and doesn’t contain a nucleus or other organelles‚ it does have cell membrane. Bacteria and Archea are single celled prokaryotes
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are important to understanding cell injury and cell death regardless of the injuring agent” (Heuther & McCance‚ 2012). Cellular injury arises when a cell is unable to sustain homeostasis. The injury can be reversed if the cell can recover from whatever damage was done but if it does not recover the cell will die. The three common forms of cell injury are hypoxic injury‚ free radicals and reactive oxygen species injury‚ and chemical injury. The most common form of cell injury is hypoxic injury‚ or
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optimal temperature for the enzyme sucrase will be 37°C because that is the point where the temperature increases the rate of reaction to its greatest point without denaturing it. For the pH test‚ I think that the optimal pH for sucrase will be the pH of 7 because it is neutral so it won’t affect the charge in a negative or positive way. For the denaturation test‚ I think that the optimal treatment for the enzyme is when both the enzyme and substrate are untreated. For the substrate concentration test
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1. INTRODUCTION A solar cell is a device that converts the energy of sunlight directly into electricity by the photovoltaic effect. Sometimes the term solar cell is reserved for devices intended specifically to capture energy from sunlight‚ while the term photovoltaic cell is used when the light source is unspecified.”Photovoltaics” the field of technology and research related to the application of solar cells in producing electricity for practical use.
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Biological Membranes: A simulation Introduction Diffusion is the process by which collisions between molecules cause to spread apart. This movement is described as movement from an area of greater concentration to an area of lower concentration. Hence‚ diffusion continues until the molecules are equally distributed. This is to ensure that molecules have reached a state of equilibrium. Diffusion occurs spontaneously‚ no energy is involved. In cells‚ Diffusion occurs through cell membrane which is
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Children‚ Cell Phones‚ and Possible Side Effects There are possible health risks that go along with allowing a child to use a cell phone. This subject has been debated for years. Many researchers and health care professionals have done studies and given their opinions about it. Although cell phone companies do not opening warn you when you purchase a cell phone‚ I take the advice of risk very seriously. Being a mom‚ I found the following information very helpful when deciding that a cell phone
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Dark Tech: The Effect of the Cell Phone on Health Today’s technologies are advancing at such an astonishing rate. This can make it difficult for even the most avid “techie” to keep pace. Technology is that wonderful thing that brings comfort and convenience to our lives. But‚ with that comfort and convenience‚ there often comes a price; and the technology of the cell phone proves no exception. Arguably‚ as a communication tool‚ the cell phone has no equal in how it has changed and affected
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Animation: Cells & Chemistry Glycolysis After viewing the animation‚ answer these questions. 1. Cells derive energy from the oxydation of nutrients‚ such as glucose . 2. The oxidation of glucose to pyruvate occurs through a series of steps called glycolsis . 3. How many carbons are in a molecule of glucose? 6 4. The energy related during these oxydation reactions is used to form adenosine triphosphate (
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LABORATORY 3 The Effect of Temperature on the Rate of PNPP Hydrolysis Partners: Shelby Cruickshanks Alexis Williamson Introduction Most of the chemical reactions‚ which occur throughout our bodies‚ would proceed at a much slower rate of reaction without the presence of an enzyme. Cells can not wait for centuries for molecules to break down‚ if they waited for that‚ there would be no way for the organism to obtain energy or in turn survive. This is where biological catalyst comes into
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The Day I Was Released From Jail March 2nd of 2011 in Charlotte NC I just receive 2 phone calls. The first one was from my lawyer in Morganton notifying me that several indictments had come through. The other was from Detective South of the Burke County Sheriff’s Office‚ telling me that I had no choice but to turn myself in. I remember him saying “If you run I will find you”. I thought about running from my troubles‚ but that isn’t a life that I wanted. The next day I took the long drive from Charlotte
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