Portfolio The Cell and Cell Theory [pic] The cell The word cell comes from the Latin word “cellula”‚ which means a small room. The cell is the smallest unit of a living organism‚ also known as “the building block of life”. Every living organism is consisted of a cell. There are bacteria (unicellular organisms)‚ and multicellular organisms. There are different types of cells‚ prokaryotic and eukaryotic cells. All cells come from preexisting cells. “Every cell is self-maintaining;
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Six Factors Affecting the Performance of an Enzyme Enzymes are considered catalysts; substances that increase the rates of reactions. Enzymes are responsible for thousands of metabolic processes that involve the sustainment of life‚ one common one is simple food digestion. Without enzymes‚ digestion would occur too slowly for life to continue. Enzymes maintain a protein structure consisting of one or possibly more than one polypeptide chains of defined primary structure‚ and take up a characteristic
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PLANT CELL Introduction Plant cell is the basic unit of structure and function in nearly all plants. The range of specialization and the character of association of plant cells are very wide. In the simplest plant forms a single cell constitutes a whole organism and carries out all the life functions. In just slightly more complex forms‚ cells are associated structurally‚ but each cell appears to carry out the fundamental life functions‚ although certain ones may be specialized
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iii) Each stoma has two bean shaped cellscalled guard cells surrounded by epidermal cells. iv) Each guard cell hasa nucleus and a number of chloroplasts. The inner wall of the guard cell is thicker than the outer wall. v) The guard cells controls the opening and closing of the stomatal pore. vi) The opening and closing of the stomatal pore is controlled by the entry and exit of water to and from the guard cells. vii) The function of the stomata is the exchange of gases
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articles: “Hate Speech on the Internet Should Be Regulated” by Ronald Eissens‚ and “Hate Speech on the Internet Should Not Be Regulated” by Sandy Starr‚ in which both authors reveled their opinions and standing on this issue by using different styles and presenting their ideas in different ways. Throughout his Essay‚ Eissens uses different appeals on order to convey his ideas‚ specially using pathos. He believes that hate speech should be regulated to stop hate crimes such as racism‚ Islamophobia
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errors. Concentration of hydrogen peroxide Test 1 Test 2 1% 31ml 35ml 2% 70ml 55ml 4% 150ml 140ml 6% 170ml 180ml Discussion The aim of this investigation was to investigate how the concentration of hydrogen peroxide applied to liver cells effects the total amount of by-products produced. By preforming this practical we were able to prove the hypothesis correct as the table
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support‚ move‚ and protect the body; they also give us our features. But without bone cells we would have no bones. Bone cells are the living units that make up your bones and keep them functioning. Bone cells have two major roles‚ which are the production of new bones and resorption or destruction of old bone. They also carry out other small roles. There are four main types of bone cells: Osteogenic‚ which are bone cells that respond to traumas‚ osteoblasts‚ which form bone matrix around themselves by
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October 2014 Cell Division Mitosis Abstract Mitosis and Meiosis: Cells can be divided in unicellular organisms or in multi-cellular organisms. DNA controls the cell division. Bacteria reproduce by a process called binary fission. Bacteria have one chromosome that’s attached to the cell membrane. The chromosome replicates and the two copies separate as the cell grows. Over a period of time this one cell makes two cells. Eukaryotes do the process of mitosis. In mitosis‚ each daughter cell gets about
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differences between cancer cells and normal cell. Some of the differences are well known ‚where as others have only been recently discovered and are less well understood.You may be interested in how cancer cells are different as you are coping with your own cancer or of a loved one. For many researchers understanding how does cancer cells function differently from normal cells foundation for developing treatments designed to rid the body of cancer cells without damaging normal cells. First‚ when it comes
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Cited: Admin. "Cell Phones and Their Positive Effects in the Society." Cell Phone Brands and News for Cell Phone Fans. N.P.‚ 30 Aug. 2010. Web. 10 Mar. 2013. Baldwin‚ Anya. "Positive Effects of Cellphone Technology in the Workplace." Small Business. n.d. Web. 10 Mar. 2013. Easton‚ Jaclyn. Going Wireless: Transform Your Business with Mobile Technology. New York: Harper Business‚ 2002. Print. Goggin‚ Gerard. Cell Phone Culture: Mobile Technology in Everyday Life.
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