Arsenic Contamination in Drinking Water: Lack of Awareness in Khulna Division Md. Alamgir Hossen Email: auny.du@gmail.com Assignment No # 01 Arsenic Contamination in Drinking Water: Lack of Awareness in Khulna Division Arsenic is treated by World Health Organization as the largest mass poisoning of a population in history in Bangladesh (WHO‚ 2002). Arsenic poisoning through drinking water results pigmentation of skin; enlargement of kidney‚ liver and lungs; failure
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with a history of the autosomal recessive disease Sickle cell anaemia should have all embryos screened with Pre-Implantation Genetic Diagnosis technology (PGD). If tested positive‚ treatment should be made compulsory for the child at a young age and will be treated with stem cell gene therapy. This disease has no personal relevance to me‚ however‚ there is currently 90K people suffering from Sickle cell anaemia in the United States. Sickle cell anaemia is relevant to society because it greatly reduces
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Tuesday‚ October 9th‚ 2012 Comparing Plant and Animal Cells Abstract The purpose of our lab was to have a better understanding of what are the differences between animal cells and plant cells. Although the cell is the basic unit in both living beings they are not completely alike. For that I have examined and compared human cheek cells to Elodea leaf cells. First‚ I’ve scraped the inside of my cheek with the end of a swab stick to collect the cells then I’ve prepared them on a clean glass slide. When
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The Lipid Barrier of the Cell Membrane‚ and Cell Membrane Transport Proteins The structure of the membrane covering the outside of every cell of the body is discussed in Chapter 2 and illustrated in Figures 2–3 and 4–2.This membrane consists almost entirely of a lipid bilayer‚ but it also contains large numbers of protein molecules in the lipid‚ many of which penetrate all the way through the membrane‚ as shown in Figure 4–2. The lipid bilayer is not miscible with either the extracellular
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recent biomedical research is “Human Stem Cell” from which all 210 different kinds of tissue in the human body originate(the Center for Bioethics and Human Dignity‚ 94). Additionally‚ UNESCO states that separating some inner cell mass from the embryo at the blastocyst stage‚ they can be cultured to produce pluripotent stem cells‚ capable of developing into blood ‚ muscle‚ or many other kinds of tissues and organs of the body (13). Thus‚ at first “Stem Cell” may sound hopeful for human life but
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Stem cell research is a new technique developed to extract stem cells from human embryos and aborted fetuses. Stem cells are cells from a human organism which are capable of becoming many different kinds of human tissue in the body. Stem cells‚ specifically‚ are cells that have not been fully differentiated as particular cells and can potentially become any tissue in the human body. The major purposes or goals of doing stem cell research are to gain scientific knowledge about embryonic development
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2.5.1 Cell Structure Vocabulary: cell wall‚ centriole‚ chloroplast‚ cytoplasm‚ endoplasmic reticulum‚ Golgi apparatus‚ lysosome‚ mitochondria‚ nuclear envelope‚ nucleolus‚ nucleus‚ organelle‚ plasma membrane‚ plastid‚ ribosome‚ vacuole‚ vesicle Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. What are some of the structures inside a cell that help it to live and perform its role in an organism? ______Mitochondria‚ nucleus‚ ribosome’s. __________________________________________________________
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Describe the normal process of cell division (mitosis)‚ and explain how this process is affected in the abnormal growth of tumours Cell division is important as it allows cells to reproduce also they divide so that organs can grow and be repaired. “In the form of cell division called Mitosis‚ one cell divides into two daughter cells‚ each of them then complete but smaller than the original cell.” [1] The cell cycle is a seven stage process by which a cell duplicates itself and divides in two.
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Nucleus- The nucleus is the control center of the cell. This is where DNA is contained. This is like the town hall or the mayor’s office because it is the control center of a town. The nucleus uses DNA like a city uses blueprints to direct the production of protein. Nucleolus- The nucleolus is where ribosome is made and is rich in RNA content. It is located inside the nucleus. A mayor is like this because the mayor makes everything in the town happen. He also works from the town hall‚ or works
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Stem Cell Controversy Stem cells were first isolated and cultured in November of 1998 and have been surrounded with much debate and controversy since day one. “Although the ethical debates have been mostly static and have closely mimicked the ethical debates over abortion‚ the political determinations concerning federal funding of stem cell research have gone through numerous evolutions in the years since the first hESCs were isolated and cultured” (Saltzberg 505). Research is currently being
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