Review Sheet Exercise 1 Cell Transport Mechanisms and Permeability Activity 1: Simulating Dialysis (Simple Diffusion) • Describe two variables that affect the rate of diffusion: Two variables that affect the rate of diffusion are size and concentration gradient. The molecular size vs the MWCO size of the membrane can either increase‚ decrease‚ or prevent diffusion. The greater the concentration gradient the greater the diffusion rate due to molecules moving from areas of higher concentration
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PLANT CELL AND ANIMAL CELL LECTURER : ENCIK AZHAR GROUP’S NAME : 2. Mohd Alimi 3. Suraya Hani 4. Norhaswana CONTENT INTRODUCTION 3 WHAT IS CELL? 4-5 HISTORY OF CELLS DISCOVERY 6 ANIMAL CELL 7 PLANT CELL
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Identifying and comparing the main components of blood. By Jason T Morrison. Blood‚ what an amazing substance. It has only been since being set this task by one of my tutors‚ Dr C Dublon that I have truly realised how amazing blood really is. Blood is not as some people may think just made up of one component‚ but many different components working together in an almost symbiotic relationship. The average human being carries approximately five litres of blood‚ which is equivalent to about 8% of their
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Does This Thing Work? It operates on a 100 year old proven technology called electrolysis. Whenever you place two pieces of metal in water‚ and apply electricity‚ the water separates into it’s basic molecules‚ Hydrogen and Oxygen (H2O). If you look at the picture on the left‚ you will see H2O molecules connected together in their liquid form which is WATER But when you apply electricity (from your car battery)‚ the molecules separate and form a GAS (called HHO) which is a mixture of Hydrogen
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Cell Membranes and Transport Hands-On Labs‚ Inc. Version 42-0033-00-01 Exercise 1: Diffusion Observations Data Table 1: Rate of diffusion in different temperatures | | ºC | Minutes | Temperature | InitialTemp. | InitialColor | 5 | 10 | 15 | 20 | 25 | 30 | 60 | Cold | 10°celsius | clear | clear | clear | clear | clear | clear | light purple | light purple | Ambient | 25°celsius
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how the plant cells and solar cells are similar to each other as well as how they are different to one another. In addition this paper explains how the laws of thermodynamics apply to each of the plant and solar cells system. Plant Cells and Solar Cells Photosynthesis is the process of producing and releasing oxygen in the air. It needs sunlight‚ carbon dioxide and water. During the process
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Blood disorder HCA/240 September 22‚ 2013 Blood disorder Blood is compromise of four main components‚ Plasma‚ red blood cells‚ white blood cells‚ and platelets. Plasma is a yellow mixture of water‚ protein‚ and salt that carries blood cells‚ nutrients‚ hormones‚ gases and waste. Red cells contain hemoglobin‚ a protein that contains iron. Hemoglobin deliver oxygen to all parts of the body‚ also takes carbon dioxide to the lungs. Platelets are small cells that control the blood. These form
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Brittney DeLano Doctor Paddy Ryan SCI 3010 7 January 2013 The Aral Sea The Aral Sea use to be the forth-largest saline sea in the world‚ that is until in the 1960s. The former Soviet Union diverted the two rivers that fed the Aral Sea‚ to make water available to the surrounding cotton fields and other crop farming regions in the desert like area. Due to the diversion of the rivers‚ the Aral Sea has begun to evaporate into the Aral Sea we see today. Even though the irrigation of the desert
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molecules spread faster and faster. The opposite would be true of colder temperatures. 3. Considering the osmosis lab‚ explain the relationship between fluid volume and osmotic pressure. Answer: Osmotic pressure is the measure of the tendency for osmotic flow to occur. Osmotic flow is from a solvent to a solution. This is the amount of pressure that needs to be applied from the outside to prevent osmosis. Fluid volume might be connected to osmotic pressure as the amount of pressure required to contain
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potato cells. Background: Osmosis is the diffusion of water across a differentially permeable membrane due to concentration differences. Tonicity is the concentration of solutes. The potato cell has 3% of dissolved materials. Hypertonic is when the solution has more dissolved materials outside the cell than inside. The cell will lose water this way and shrink. The potatoes in the 5% salt solution will shrink. Hypotonic is when there is less solute dissolved materials inside the cell. The cell will
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