will be the production of oil. Petroleum is recovered mostly through oil drilling. This comes after the studies of structural geology at the reservoir scale‚ sedimentary basin analysis‚ reservoir characterization mainly in terms of porosity and permeable structures. It is refined and separated‚ most easily by boiling point‚ into a large number of consumer products‚ from petrol or gasoline and kerosene to asphalt and chemical reagents used to make plastics and pharmaceuticals. Petroleum is used in
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did not change. 2. No‚ because the color inside the tube did not change. 3. Yes Glucose moved out of the tube. The color changed from transparent to orange. The Effect of Weight on Diffusion: Molecule Molecular Formula Did it cross selectively permeable membrane Starch Polysaccharide made up of many Glucose molecules No Glucose C6H12O6 Yes The Effect of Weight on Diffusion’s Speed: We put 3 elements in a TSA plate and left them for 30 minutes to see where diffusion is faster‚ the results are:
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going to be the constant It massed at 2.53 grams and had a height of 21mm a width of 12mm and thickness of 11mm and a total volume of 2772mm3 . We left ours in the water for 24 hours but the one in the bag did not fully diffuse. Because of the semi-permeable membrane that allows certain molecules to get in such as water. Osmosis allows the movement of water to get past the membrane in a cell so that it may get high concentration to low concentration.
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a lower concentration diffusing threw pores in the dialysis bag. The experiment sought to find out which solutes would diffuse threw the pores of the dialysis bag‚ whether in or out of the bag. The pores and walls of the dialysis bag acted as a permeable membrane‚ like the one found in cells‚ and was the regulator of diffusion for the solutes. Studying the movement of solutes threw the dialysis bag helps better understand diffusion of a cell membrane‚ and the means and solutes that make a solution
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of water molecules from within the cell to outside (higher to lower area of concentration). EQUIPMENT WHY I DECIDE TO USE THIS? 1 Large potato I chose to use potato cells to investigate osmosis as it is a plant cell and has a semi-permeable membrane and allows the diffusion of water across it. Sharp Knife To cut the potato into several strips 50ml of the following molar of sugar solution: 1.5M‚ 1.75M‚ 2.00M‚2.25M‚2.5M (sucrose) The different concentration of sucrose solutions
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Produced by cell clusters in the pancreas called the Islets of Langerhans‚ insulin is a hormone that regulates glucose concentration in the blood. It is a protein synthesised and stored by beta cells‚ which secrete it in surges responding to changes in glucose levels. (Hardin‚ Bertoni and Kleinsmith‚ 2012) Fig 1. The Pancreas and Insulin |Source: University of Maryland (2011) | | |
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Microbial Keratitis Microbial keratitis‚ or corneal infection‚ is a very rare but serious complication of contact lens wear. This website provides information on the infection and its symptoms‚ how to minimise your risk‚ and what to do if you suspect you have an infection. The website provides information resulting from the Australian and New Zealand Microbial Keratitis Study‚ which concluded in 2005. This was a major study looking at the rate and risks of microbial keratitis‚ which collected
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was lower. This caused the fluid column to rise in the tube. 12) Define the following terms: Diffusion: Movement of molecules from an area higher concentration to an area of lower concentration. Osmosis: Diffusion of water through a water permeable membrane from higher concentration to an area of lower water concentration. Simple diffusion: Movement of molecules from higher concentration to a lower concentration. Uses kinetic energy of the diffusing molecules. Filtration: Movement of
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Action potentials in neuron and muscle cells c. Muscle contraction d. Secretion and action of hormones and neurotransmitters 9. Osmosis: When more solute particles are added to one side of a container with a selectively permeable membrane‚ which way will the water move? From the left to the right. 10. What happens to a patient’s red blood cells when the following solutions are given: a. Hypotonic solution: Water moves into cells and they expand.
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Pressure-Flow Model of Phloem Transport The Münch pressure-flow model is an explanation for the movement of organic materials in phloem .By the Münch pressure-flow experiment‚ two dialysis tubings are connected by a glass tube. The dialysis tubings only permeable to water or particles which have smaller size than the pores of the tubing‚but impermeable to the larger solutes.As larger molecules such as proteins and polysaccharides(starch) that have dimensions significantly greater than the pore diameter of
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