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    Biochemical Correlates of Anorexia and Bulimia Millions of people in the United States suffer from anorexia nervosa and bulimia nervosa. Anorexia nervosa is a dangerous eating disorder characterized by distorted body image, obsession with food and weight, drastic reduction in food intake often to the point of starvation, and extreme weight loss (1). Bulimia nervosa is a somewhat similar eating disorder more specifically characterized by recurring episodes of uncontrollable binge eating followed

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    1. The cell membrane structure is vital to the life of the cell. The cell membrane is shaped as having a phosphate head at the very outer surface, and two fatty acid tails hanging from it. The membrane is double, so at the tip of the fatty acid tails, there are two more fatty acid tails attached to another phosphate head. This is what it looks like: The reason the cell membrane is shaped like this is mainly to control the water flow in and out of the cell. Water is very important to the cell: if

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    Prenatal Diagnosis: Heredity Disorders, Other Biochemical Diseases, and Disfiguring Birth Defects There are over 250 recognized sex-linked diseases, affecting every organ system. Of these, 95% affect males, (Emery, 1968). Despite these many sex- linked diseases, at present prenatal diagnosis can specifically be made in fewer than 40 diseases. (Emery, 1968). These sex-linked diseases are individual rare and some are named after physicians who described them, for example, Hemophilia A and B, Duchenne

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    receptors in the membrane attach to the extracellular matrix (ECM), the matrix outside the cells. These receptors are also linked to the inside of the cell, to the cytoskeleton (the skeleton of the cell) and to the signaling pathways of the cell (the biochemical steps that cause cells to act in a particular way). An extracellular matrix is a structure that is made of proteins, glycoproteins and other materials that cells are surrounded by or in contact with. Cells inside or near the matrix create the matrix

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    Hand-grip

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    and biochemical. These are all interrelated. The first area Anatomical Rationale-Hand grip strength is mainly a function of the muscles in the forearm, and hand. Eight muscles serve as the prime movers and stabilizers in hand grip strength. Eleven other muscles assist in contraction of the hand. The second is physiological Rationale which has six categories. Six of the most common measurement terms in physiology are mass, force, work, velocity, power and energy. The third area is biochemical rationale

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    Gene expression is the ability of a gene to produce a biologically active protein. This process is regulated by the cells of an organism, it is very important to the survival of organisms at all levels. This is much more complex in eukaryotes than in prokaryotes. A major difference is the presence in eukaryotes of a nuclear membrane, which prevents the simultaneous transcription and translation that occurs in prokaryotes. Initiation of protein transcription is started by RNA polymerase. The activity

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    Depression

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    without any triggering cause which leads to a great deal of frustration by the affected person and his or her loved ones. Fortunately, scientists have narrowed the list to three major causes: a first depressive episode caused by a traumatic event, a biochemical disorder, or an inherited disorder. Depression can result from an emotionally or physically stressful incident. This has been termed by psychologists as first depressive episode. Possible causes include the death of a loved one, an abortion or miscarriage

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    Runner's High

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    is caused by recurring instances in which patients have no sense of control over the outcome. The problem is, is there a biochemical explanation for this "runner's high," or is it a purely psychological event (although one can also say psychology is biochemical)? Exercise addiction, similar to substance addiction, seems to suggest that jogger's euphoria could be biochemical. There have been accounts of runners who experience withdrawal symptoms when not exercising - such as edginess, anxiety, and

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    Water

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    Water Water has 2 very important roles! But anyway, without water no life would exist on earth, it is the most important biochemical of all. Three quarters of the earth is covered with water. 1.Role 70-95% percent of a cell contains water. The human body for example contains about 60% water. 2.Role An environment for all organisms, which live in water. Such a small molecule would exist as a gas at normal Earth temperatures were it not for its special property of hydrogen bonding

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    Bipolar Illness

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    experiences and self-deprecating thoughts or biological processes cause the depression. The mind does not exist with out the brain. Considerable evidence indicates that regardless of the initial triggers the common pathways to depression involve biochemical changes in the brain. Geneticists have provided some concrete proof of a biological connection; manic depression frequently runs in families (Scientific American 42). It is not a discriminating illness; it affects all races and social classes

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