Introduction Many types of food are necessary for a human to survive and to help maintain the body. Food contains vitamins‚ minerals‚ carbohydrates‚ water‚ proteins and lipids which are all essential for the functioning of the body. Each one of the 6 mentioned has a specific task‚ all equally important. An athlete must maintain a healthy mass and have a good nutritional diet. Athletes may also use performance enhancers with their diets. Diet Mountain bikers need a lot of energy when they
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PHYSIOLOGIC VALUE OF FOOD Organic compounds * Protein * Lipids * Carbohydrates * Vitamins Inorganic elements * Water * Minerals Vit & min * Act as a catalysts which prompt the 3 major nutrients –carbohydrates ‚ protein‚fats METABOLISM * “Metabolismos”-to change or alter * Chemical process of transforming foods into complex tissue elements and of transforming complex body substance into simpler ones‚ along with the production of heat energy * Is the totality of the chemical
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basis of the food chain in oceans‚ lakes‚ and seas. 4. Microorganisms are present in the intestines of humans and animals; they are needed for digestion‚ and synthesis of some vitamins that their bodies require (these include some B vitamins for metabolism and vitamin k for blood clotting). 5. Microorganisms are used to produce antibiotics that kill or inhibit other microbes; molds such as Penicillium and bacteria such as Streptomyces and Bacillus are used to make antibiotics. 6. Vaccines are substances
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physiological activities of ghrelin‚ including regulation of food intake and energy balance‚ as well as of lipid and glucose metabolism. From Mallory 2. Growth Hormone stimulates fat breakdown and prevents fat accumulation by preventing sugar uptake by fat cells. It also stimulates protein synthesis and prevents protein breakdown. This typically increases the body’s metabolism. 3. An anabolic process is one that requires energy‚ whereas a catabolic process is one that releases energy. Growth
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Top Vitamins for Bodybuilders: Biotin: There’s a limited amount of sports nutrition research on Biotin‚ it makes our top list because it has critical functions in amino acid metabolism and the production of energy from many sources. It also may be one vitamin that some bodybuilders have trouble when attempting to maintain an adequate supply. Reason bodybuilders may have difficulty with Biotin is because it can be blocked by a substance. Biotin In our Foods: Avidin is found in raw egg whites‚
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confuse you more but rather makes you more aware of what is going on when your muscles become fatigued. During short term (anaerobic) exercise‚ ATP and creatine phosphate (CP) are used up within the first 7 seconds of training. This signals the metabolism of glycogen to produce energy for your body.
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Adenosine Triphosphate (ATP)‚ an energy-bearing molecule found in all living cells. Formation of nucleic acids‚ transmission of nerve impulses‚ muscle contraction‚ and many other energy-consuming reactions of metabolism are made possible by the energy in ATP molecules. The energy in ATP is obtained from the breakdown of foods. An ATP molecule is composed of carbon‚ hydrogen‚ nitrogen‚ oxygen‚ and phosphorus atoms. There are three phosphorus atoms in the molecule. Each of these phosphorus atoms is
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Michael N. Badminton and George H. Elder Introduction and overview 558 Porphyrias presenting with acute attacks Biochemistry of haem synthesis 563 The cutaneous porphyqa~‚ 568 New approaches to treatment 574 Secondary disorders of porphyrin metabolism Conclusion 575 Further reading 575 Appendix 576 574 that result from inherited or acquired partial deficiencies of enzymes of the haem biosynthetic pathway (Fig. 27.1‚ Table 27.1). The first enzyme of the pathway‚ 5-aminolaevulinic acid (ALA)
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in every tissue except the brain‚ gonads‚ and spleen‚ and it is caused by an increase in the synthesis and activity of the Na+-K+ ATPase. The metabolism is increased to meet the increased oxygen consumption through a potentiation of gluconeogenesis‚ lipolysis‚ and proteolysis in order to provide the metabolic substrates necessary for oxidative metabolism. The effects on cardiac tissue‚ which are covered extensively elsewhere‚ include an increase in cardiac output due to increase in heart rate and
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oxygenated blood from the lungs to the body organs and returns with deoxygenated blood. Energy metabolism comes in different types such as Anabolism and Catabolism energy. They all make sure that energy breaks down and is reused to keep the body working correctly for example muscle mass and increase in bone. With the cardiovascular system and respiratory system working together with energy metabolism is when the respiratory system takes in oxygen from the lungs and then it is placed in the circulatory
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