IB Biology Lab – Vitamin C content of food Aim: To compare the vitamin C content of different fruits using the decolourisation of DCPIP from blue to clear as the indicator. • You first need to estimate the volume of a known concentration of vitamin C solution required to decolourise 2 cm3 of DCPIP solution. • Then you need to determine the volume of fruit juice that decolourises 2 cm3 of DCPIP solution. This gives an estimate of the concentration of vitamin C in fruit juice. • This
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The benefits of vitamin E are now fairly well established. Out of a controversial past it has become clear that vitamin E plays important roles as an antioxidant‚ in your immune system‚ in preventing heart disease and even in helping prevent cancer. As if this wasn’t enough‚ the research continues into other beneficial effects that vitamin E may have. It’s not particularly easy to come by however meaning if you want to get all the benefits you probably should consider a supplement to your
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(neuromuscular spasm) develops. In infants and young children‚ a long-standing calcium intake deficiency‚ in association with suboptimal vitamin D exposure‚ can produce rickets. Indeed‚ in experimental animals and in humans with extremely low vitamin D levels‚ genetic absence of calcitriol (vitamin D–dependent rickets [VDDR] type I)‚ or genetic absence of the vitamin D receptor (VDDR type II)‚ the use of increased calcium supplementation or calcium infusions will prevent and treat rickets. These observations
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Vitamin D HW205 Kaplan University Vitamin D is actually not classified as a vitamin. It is considered a prohormone and its active form functions as a hormone. In the earlier years Vitamin D was always associated directly with milk. As the progression of research has shown‚ Vitamin D is prominent in many foods. The most vitamin D rich foods are milk‚ margarine‚ fortified cereals‚ fortified orange juice‚ canned tuna and other fish such as mackerel and salmon‚ and some whole
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Katrina M November 7‚ 2013 Osteomalacia Osteomalacia is a disease of the bones‚ caused by a Vitamin D deficiency. Because patients with this disease have bones that are soft‚ they are more likely to bow and fracture than stronger‚ healthier bones. This disease can occur in children‚ in which case it is called Rickets. Because Osteomalacia is caused by the lack of Vitamin D‚ easily accessible in our diets‚ it can be turned around and cured. Osteomalacia affects people of all ages‚ and
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Benefits of Vitamin E In this article we will look at the benefits of vitamin E. Vitamin E is a fat soluble vitamin found in many foods‚ especially certain fats and oils. It is a powerful antioxidant that protects the body from damage caused by free radicals. Vitamin E has many other health benefits also. First of all‚ to fully understand the importance of the effect of vitamin E on free radicals‚ you must understand what a free radical is and what it can do to your body. A free radical is an
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Lab Report: MEASUREMENT OF VITAMIN C Introduction Nutritional diseases were once the number one cause of death only a century ago‚ but rarely affect our lives today. The complete lack of vitamin C (ascorbic acid) characterized by dark purple spots on the skin and rotting gums‚ a disease called scurvy‚ took the lives of many sailors up until the mid 1800s when the prevention was discovered. Consequently‚ British sailors became referred to as ‘limeys’ because of their daily habit of eating
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of two students required: * vitamin C indicator solution * three 50 mL beakers or medicine cups * one 10 mL graduated cylinder * three disposable pipettes * one stirring rod * Sources of Vitamin C: freshly squeezed OJ‚ bottled OJ‚ frozen OJ‚ canned OJ * Optional: container for waste solutions and source of clean rinse water There are two different preparations (starch-iodine or indophenol) that may be used for the vitamin C indicator solution. Neither is more
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Vitamin Types Sources Functions Effects of Deficiency RDA Properties C(ascorbic acid) - Blackcurrants Rosehip Strawberries Oranges Lemons Cabbage Tomatoes Potatoes Apples Pears Acts as an antioxidant ‚ prevents heart disease and cancer. Formation of collegen which unites cells as blood vessels‚ helps develop bones and teeth‚ helps white blood cells in fighting infections‚ prevents scurvy‚ necessary for the assimilation of non haem iron in the intestine. Scurvy rare in
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Chapter 8 Water/Minerals Sunday‚ March 24‚ 2013 6:05 PM Minerals- naturally occurring‚ inorganic‚ homogeneous substances; chemical elements. Major minerals- essential mineral nutrients required in the adult diet in amounts greater than 100 milligrams per day. Also called macrominerals. Trace minerals- essential mineral nutrients required in the adult diet in amounts less than 100 milligrams per day. Also called microminerals. Water-The brain is composed of approximately 80% water
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