DNA- is the material found in the nucleus that contains the genetic info. 4 billion codes in length Gene- a segment of DNA that controls a certain protein production. A gene is made up of hundreds to thousands of codes. Chromosomes- genetic material that is coiled up into structures during cell division. Importance of DNA- genes control the production of proteins..(look like‚ body function‚ body communications‚ and enzyme control) DNA screening- the process of testing individuals to determine
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Aerobic Respiration Breaking down glucose to release energy Products are Carbon dioxide and water Diffusion is … the movement of molecules from a region of high concentration to a low concentration until the concentration is equal. Role of a human circulatory system: Diffuse In – oxygen (O2)‚ dissolved food (glucose) and water (H2O) Diffuse Out – carbon dioxide (CO2)‚waste and water(H2O) Respiration – releasing energy in cells Breathing – getting air into and out of your body
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Sugar’s effect on your health The average American consumes an astounding 2-3 pounds of sugar each week‚ which is not surprising considering that highly refined sugars in the forms of sucrose (table sugar)‚ dextrose (corn sugar)‚ and high-fructose corn syrup are being processed into so many foods such as bread‚ breakfast cereal‚ mayonnaise‚ peanut butter‚ ketchup‚ spaghetti sauce‚ and a plethora ofmicrowave meals. In the last 20 years‚ we have increased sugar consumption in the U.S. 26 pounds
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This experiment aims to discover the effect of 6 different treatments on the permeability of the cell membrane. These will be distilled water‚ sucrose‚ sodium hydroxide‚ hydrochloric acid‚ ethanol and boiled water. The treatments include immersion in these solutions‚ and exposure to high temperature. The tissue used is from the taproot of a beetroot‚ and the effect on the membrane’s permeability assessed by the amount of pigment leakage that occurs. Hypothesis ==========
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Diffusion And Osmosis Abstract In this Diffusion and Osmosis lab a total of three experiments were performed. For experiment 5.1 we investigate diffusion through a selectively permeable membrane and the many factors that influence the rates of diffusion. In experiment 5.2 we investigate both animal and plant cells in different molar solutions and the different osmotic behaviors within the cells. In experiment 5.3 we test the osmolarity of plant cells through the usage of potato tuber cells
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Discussion: We have made four set-ups in two different specimens. Onion and Boat of Moses skin with water‚ 2%‚ 5% and 10% salt (NaCl) Solution. Based on our experiment‚ the result of the set up explains that the presence of the salt solution results in outward diffusion of water and the collapse of the protoplast. In table 1‚ we have observed under the microscope that the onionskin mounted with water has no results of plasmolyzed cell (0%). This time‚ we have repeated the procedure with 2% salt
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isolates were isolated 7 from Coriander‚ 5 from Onion‚ 6 from Potato‚ 4 from Tomoto and 5 from Turmeric rhizospheric zones. Exponential growth was observed after 24 hrs of incubation. All organisms were found to be fast growers with generation time more 3.2±0.4 h-1. To elucidate the rhizospheric
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Disaccharides Maltose‚ sucrose‚ lactose Oligosaccharides 3 to 9 Polysaccharides or glycans Homopolysaccharides Heteropolysaccharides D-Glucose in Nature The most abundant carbohydrate is D-glucose. Cells of organisms oxidize glucose for energy: In animals excess glucose is converted to a polymer called glycogen. Disaccharides On hydrolysis give two molecules of monosaccharides E.g Sucrose (Cane sugar) Lactose (milk sugar)
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the energy content in white bread and peanuts [F4-Chapter 6] Q2: To determine the concentration of the solution which will maintain the mass of plant tissues. [F4-Chapter 3] 2006 Q1: To study the effect of concentration of albumen suspension on the rate of reaction of pepsin enzyme. [F4-Chapter 4] Q2: To determine the concentration of sucrose which is isotonic to the cell sap of mango. [F4-Chapter 3] 2007 Q1: To study the effect of light intensity on the rate of photosynthesis of a Hydrilla
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2011. Claude‚ A. (1946). Fractionation of mammalian liver cells by differential centrifugation: I. Problems‚ methods‚ and preparation of extract. The Journal of experimental medicine‚ 84(1)‚ 51. De Duve‚ C.‚ & Beaufay‚ H. (1981). A short history of tissue fractionation. The Journal of cell biology‚ 91(3)‚ 293s-299s.
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