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Thursday, February 28, 2019

Can Different Temperature Effect the Cell Membrane

tabular array of Contents Abstract Introduction Aim Hypothesis Material manner Results Discussion Conclusion? Abstract The aim of this experiment was to see whether opposite temperatures will affect the mobile phone membrane, thus would therefore releases the purple pigments reveal of the vacuole which causes the leakage of the purplish liquid.? Background Information The outermost layer is the cell groyne, which is bribe only in determine cells and is made up of a carbohydrate called cellulose and in like manner has opposite protein substances embedded within it.The cell wall is a rigid layer and gives structural stability to the cell and also limits the permeability of large substances into and out of the cell. Within the cell wall, surrounding the cytoplasm is the cell membrane which is a semi-permeable membrane consisting of a phospholipid bilayer. The bilayer consists of phospholipids which arrange themselves so that the hydrophobic ( irrigate system supply supply hating) tailcoat ar shielded from the surrounding water. The heads of the molecules argon hydrophilic (water loving) and face the water.Overall, the cell membrane acts to selectively allow substances to move into and out of the cell and maintains the cell potential. Proteins within the membrane act as molecular signals allowing the cells to communicate with each other and other substances out fount the cell. About 70% of the cell membrane is actually protein. The cytoplasm of the cell has a number of organelles, although there is one in particular(a) that the vacuole. Vacuoles act to store food for the plant and also assist in structural stability of the plant along with the cell wall.The vacuoles in plant cells be normally larger than those found in animal cells and checker a fluid called, cell sap. This fluid is rich in nutrients and other substances and is surrounded by a membrane called the tonoplast, separating it from the cytoplasm. The tonoplast is similar in reputation to the cell membrane. Biological pigments, also known as pigments or biochromes are substances produced by living organisms that have a glossary resulting from the selective colour absorption. The pigments in common beet are betalain pigments they are located in the vacuole of the cell.They are named after the Beet family of plants, but are also found in fungi. In the petals they are thought to attract pollinating insects and may be present in seeds/fruits to encourage birds to eat them and so spreading around the seeds. When a common beet in heated, it tampers with the cell membranes. A membrane is made of a phospholipid bilayer. These are formed because the phospholipids that make it up have a hydrophilic (water loving) head and a hydrophobic (water hating) tail. The tails pack together, exposing only the heads to the water.This is the phospholipid bilayer. The beetroot pigment is used commercially as food dye. It changes colour when heated so can only be used in ice-cream, sw eets and other confectionary, but it is both cheap and has no known allergic side-effects. Aim To investigate whether different temperatures can detriment and denature the plasma cell surface membrane of beetroot cells. This would then release the beetroot pigments out of the vacuole which causes the leakage of the purplish liquid. Hypothesis common beet in hotter water will release its pigments more(prenominal) than beetroot in cooler water.The hotter water should break more vacuoles containing the pigments which will make the water appear to be more purple. Meanwhile the colder water will good-tempered have pigments byout the water, and therefore will be scarcer. Materials -x6 Test underground -x1 Chopping Board -x1 Serrated Knife -x1 Corer -x6 Skewers -x2 Beetroot -x3 Test Tube distort -x1 Wooden Test Tube Holders -x1 Bunsen Burner -x1 Match Box -x1 bobsled Mat Method 1. Use the corer to get equal cylindrical pieces of beetroot 2. Cut pieces to same size if they are une qual 3. Skewer the beetroot through the middle . Rinse the skewers of beetroot 5. Fill the trial tubes to half way with water 6. Place beetroot skewers into test tube and test tubes into test tube holder. Cold 1. Put in fridge and deep-freeze 2. get after chosen time, and record your observations. Hot 1. Put over a hot flame and a purple flame 2. Remove after chosen time, and record your observations Results TemperatureColour of WaterColour of Beetroot Room Temperature 23C Rich and Dense PurpleDeep Red Not visible through water Fridge 10C Partially reddish purpleHot knock Freezer-9CVery light pink barely any change in the colourVery deep red Blue Flame 100C A deep, rich redNormal purple colour Discussion Beetroot in hotter water will release its pigments more than beetroot in cooler water. The hotter water should break more vacuoles containing the pigments which will make the water appear to be more purple. Meanwhile the colder water will still have pigments passim the water, and therefore will be scarcer. The hypothesis was supported by the results as the beetroot in the hotter water did release more pigments than the beetroot in the colder water.Some problems that came to attention were the submit sizes of the beetroot pieces could not be made the exact same size. Even though cutting them side by side of each other did make them look similar, the sizes were off still. The experiment as brought sight to what can happen when a fruit or veggie or flower is heated in water will do. The water colouring process will accelerate more than twice as fast and that could provide big opportunities in some companies. A deface in the experimental design was that attention wasnt given to the clobber of test tubes that were used.A glass test tube was used for the beetroot that was rimy in the freezer while in fact a ductile test tube should have been used because the glass test tube could not flex to the expansion of the water in the test tube and so resulting i t to crack. Conclusion In conclusion, the hypothesis was supported as the beetroots pigments were release more in the hot water more than the cold water did. The hotter water made the beetroot cell vacuoles to burst, release the pigments, thus colouring the water.

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