"The role of calcium and vitamin d" Essays and Research Papers

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    Vitamin C Lab

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    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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    Benefits of Vitamin E

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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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    History of Calcium- Calcium is a very interesting element that has a lot to tell about itself. There is much history to be learned about calcium. Calcium was actually discovered by Humphry Davy in 1808. Calcium’s name happens to come from the latin ‘calx’ meaning lime. Lime (calcium oxide‚ CaO) was a useful material that was created by heating limestone. Before the discovery of calcium‚ a man named Antoine Lavoisier classified the lime as “earth” because it was very difficult‚ almost

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    Measurement of Vitamin C

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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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    Vitamin C Investigation

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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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    Describe the role of calcium in muscle contraction‚ where it is stored‚ and how it is released and recycled. Calcium storage‚ release‚ and recycling Muscles need to be malleable or have plasticity in order to function correctly. This is where calcium comes into the picture. All muscles use calcium molecules for regulatory and signaling purposes. Contraction control and relaxation control by calcium is achieved first by the activation of troponin-tropomyosin with the actin filaments. The second

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    Chapter I “Malunggay Veggie as Natural Vitamin Capsule” a. Background of the Study This study determines the effectiveness of malunggay as natural vitamin and to determine if the malunggay can be a good and safe vitamin. To determine whether a vitamins or natural vitamins made from malunggay veggie is comperable to the commercial or chemical products in terms of : 1.1) its taste 1.2) its price 1.3) its effectiveness

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    vitamin c and b

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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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    Benefits of Vitamin C

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    Why is Vitamin C good for you? Health The most well-known health benefit of blackcurrants is that they contain large amounts of Vitamin C. Vitamins are substances we need to enable our bodies to live‚ grow and reproduce normally. Vitamin C is an essential nutrient - it cannot be made by the human body and we must therefore eat foods which contain it (Bibliography Ref: 13). Because the body breaks down Vitamin C very quickly and does not store very much‚ we need to eat Vitamin C containing foods

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    Question 2 3) Calcium in the diet of a teenager is actively absorbed in the small intestine and transferred into the intestinal capillaries. Describe the route this calcium would follow to end up in the upper arm. Describe in detail the role of calcium at the neuromuscular junction as well as its role in the mechanism of muscle contraction and relaxation of the triceps. Considering the function of calcium in bone growth‚ explain in detail how the humerus would grow in length. Calcium in the diet

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