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Image: Periodic Table of Elements , NASA From the Virtual Cell Biology Classroom on ScienceProfOnline.com
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MINERALS - Magnesium Magnesium plays an important role in the production and transport of _________ . It is also important for the contraction and relaxation of muscles . Magnesium is involved in the synthesis of protein , and it assists certain enzymes in the body. Over 300 enzymes require magnesium ions for their catalytic action, including all enzymes using or synthesizing ATP, or those that use other nucleotides to synthesize DNA and RNA . Human magnesium deficiency is common, with only approximately 32% of the United States meeting the RDA. Low levels of magnesium in the body have been associated with development of illnesses such as asthma, diabetes, and osteoporosis. Mg 12 24.305 Magnesium Images: Magnesium crystals , Warut Roonguthai; Food sources of Magnesium , Peggy Greb From the Virtual Cell Biology Classroom on ScienceProfOnline.com
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WATER All chemical reactions of living things take place in water. Many types of metabolic wastes can only be eliminated from body when dissolved in water. The catalysis of materials requires water. You may be able to survive weeks without food, but wouldn’t last more than a few days without water. Human body ~ 65% water (even dense tissue like bone is 33% water). Food provides ~ 20% of total water intake. Remaining 80% from water and other beverages. Institute of Medicine advises men consume roughly 3.0 liters (~ 13 cups) total beverages daily & women consume 2.2 liters (~ 9 cups). Q: What are some reactions that we have discussed in class that involve water? From the Virtual Cell Biology Classroom on ScienceProfOnline.com
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Confused about what to eat? • Eat more fresh food! • Eat local food when you can! • Complex carbs, balanced wit protein and healthy fats. • Reduce animal fats and refined sugar. Image: Edamame , Tammy Green From the Virtual Cell Biology Classroom on ScienceProfOnline.com
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Confused? Here are links to fun resources that further explain nutrition: Metabolism: Diet & Nutrition Main Page on the Virtual Cell Biology Classroom of Science Prof Online . Cellular Respiration animation by Jay Phelan, “What is Life? A Guide to Biology”, W. H. Freeman & Co. The Body Machine music video by School House Rock. “Sugar, Sugar” a song by The Archies. Food Molecules video from HowStuffWorks, a Discovery company. Do You Want Fries With That? song by Tim McGraw. (You must be in PPT slideshow view to click on links.) From the Virtual Cell Biology Classroom on ScienceProfOnline.com
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Metabolism Project See the ScienceProfOnline Virtual Cell Biology Classroom: Metabolism & Nutrition Lecture for a printable Word .doc of this project.
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