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Free research papers and essays on topics related to: amino acids

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  • A Introduction - 1,012 words
    ... shing areas were forced to close due to effects from increased river nutrients. Also, real estate values can be affected by high-density farming. If the residents near a farm can perceive an unpleasant odor, the value of their land may be reduced. Besides disagreeing about the level and extent of regulatory reform, people disagree about the level of technology that is necessary to treat livestock waste safely. Some say that when used properly, current waste treatment methods are adequate. Others say that livestock operators need to adopt new waste treatment technologies. The Sierra Clubs Holman would like livestock operations to use more advanced treatments such as those used for human w ...
    Related: senate bill, policy makers, environmental standards, occurring, prevention
  • Absorptive And Postabsorptive States - 383 words
    Absorptive And Postabsorptive States Absorptive and Postabsorptive States The absorptive state is the time during and right after eating a meal. The absorptive state lasts for four hours, during and after each meal. During this state glucose is the most important energy fuel. Amino acids and fats are used to form degraded protein, and small amounts are used to provide ATP. Metabolites are transformed to fat if they are not used for anabolism. Glucose is formed by the conversion of fructose and galactose, which are stored in the liver from the entrance of monosaccharides. Glucose is released into the blood, or converted to glycogen and fat. Some glucose enters the liver and is used for energy ...
    Related: nervous system, blood sugar, sympathetic nervous system, hormone, promoting
  • Analytical Chemistry - 1,249 words
    Analytical Chemistry Nanothinc - providing information services concerning nanotechnology and related enabling technologies, which include supramolecular chemistry, protein engineering, molecular design and modelling software Oxford Molecular Group PLC - A leading developer and marketer of computer-aided chemistry and bioinformatics software. Mac Education Software: Chemistry Math Latin Greek French Spanish Prode - Data on software, computers, chemical engineering, chemistry Trinity Software - programs for chemistry, life science, and speech and communication. Program titles include curriculum supplements and research tools for both PC and MAC computers. New Technology Collaborative, Inc - e ...
    Related: analytical, analytical chemistry, chemistry, inorganic chemistry, intellectual property
  • Antibiotics - 560 words
    Antibiotics Antibiotics are chemical compounds used to kill or inhibit the growth of infectious organisms. Originally the term antibiotic referred only to organic compounds, produced by bacteria or molds, that are toxic to other microorganisms. The term is now used loosely to include synthetic and semisynthetic organic compounds. Antibiotic refers generally to antibacterials; however, because the term is loosely defined, it is preferable to specify compounds as being antimalarials, antivirals, or antiprotozoals. All antibiotics share the property of selective toxicity: They are more toxic to an invading organism than they are to an animal or human host. Penicillin is the most well-known anti ...
    Related: bacterial cell, amino acids, nucleic acids, classified, chromosome
  • Apoptosis And Aging - 1,110 words
    Apoptosis And Aging When we gain control of the gene responsible for the phenomenon of apoptosis, we will be in control of aging. We are finding more evidence every day, indicating genetic links to all sorts of factors in the human being. We are just now beginning to scratch the surface of our own genetics. A landmark discover has just been unveiled: In February [2001], the two groups charting the human genome published their results - the entire 3 billion base pair sequence. The only definitive conclusion so far: Humans are far more complicated than we thought. ... Eric Lander, director of the Whitehead Center for Genome Research in Cambridge, Massachusetts ... adds: "within a decade, we wi ...
    Related: aging, apoptosis, personal interview, natural process, florida
  • Athletes In Trouble - 1,062 words
    Athletes In Trouble Do athletes engage in more deviance than non-athletes? In the study of athletes and drugs, one major topic that was discussed was the use of drugs by athletes at all levels. With much controversy dealing with the issue of drug testing in high school, college and professional sports, many people are debating whether or not the use of drugs is a problem in the athletic system. With the problems of drugs appearing in the world of sports, many parents believe that if they place their children into a sport or any other extracurricular activity at an early age they will be spared from the world of drug use and maintain better grades in the long- run. Little do they know that st ...
    Related: college athletes, student athletes, enhancing drugs, drug testing, consuming
  • Beginning Of Earth - 650 words
    Beginning Of Earth There were volcanoes everywhere, there was lava pouring out from the earth in large quantities. Ash was flying around my very own head landing in my hair. It was one of the scariest things I have ever seen in my whole entire life. Then again I am only 16. Right when I tried to figure out what just happened I got sucked back into my room, like nothing had ever happened. I grabbed my journal and wrote down the following. The theory of evolution states that creatures change overtime to suit their surroundings. This is called environmental adaptation. The more a creature can adapt to its environment the greater chance it has of living and show an increase in population called ...
    Related: metamorphic rocks, last year, south africa, occurring, soup
  • Bio Outline - 2,398 words
    Bio Outline BIOLOGY 220 OUTLINE SECTION II Text: Essential Cell Biology I. Opening Comments (Chapter 3) A. Life creates order out of disorder through a never-ending series of chemical reactions B. This is Metabolism and the ability to Metabolize C. Most of the chemical reactions required by the cell would not occur at physiological conditions D. Control of these reactions is achieved by specialized protein, ENZYMES. II. Basic Principles of Energy A. Energy - Basics Principles 1. Define Energy - ability to do work 2. Define Work - the ability to change the way matter is arranged 3. Define Kinetic Energy 4. Define Potential energy - energy of position 5. FIRST LAW of THERMODYNAMICS Energy can ...
    Related: outline, energy level, carbon dioxide, basic principles, storage
  • Bio Outline - 2,483 words
    ... lecule of glucose requires (1) 18 ATP 7.3 kcal/mole x 18 = 131.4 kcal (2) 12 NADPH 53 kcal/mole x 12 = 636 kcal (a) Note 53 kcal/mole - ref: Campbell pg. 178 for NADH to O2 H2 O (3) Takes 767.4 kcal to make 1 molecule of glucose (686 kcal) (a) 686/767.4 = 89% efficiency. F. PHOTORESPIRATION (Use Study Sheet) 1. Rubisco prefers O2 to CO2 2. If rubisco binds O2 a. Process uses 6 additional ATP b. Regenerates RuBP c. Produces a 2-C compound (instead of 3-C) d. This compound is sent to peroxisome and mitochondrion (1) converted to Glycerate (3C) (2) transported back to chloroplast (3) Uses ATP to convert to 3-PGAL 3. NET LOSS OF ENERGY 4. Some plants waste as much as 50% of the energy they ...
    Related: outline, compare and contrast, citric acid cycle, krebs cycle, acid
  • Biological Viruses: All Time Enemies - 1,170 words
    Biological Viruses: All Time Enemies First came fever. Then Hamid Mansaray, a young nurse's aide at a remote African hospital, began to hemorrhage. Blood erupted from his nose and mouth. It burst out of capillaries beneath his skin and eyes. By the time I reached the village of Panguma in Serria Leone, Mansaray lay isolated in a special ward. Doctors had diagnosed an obscure illness called Lassa fever. Its cause was a virus, an infective agent so small that 100,000 of them clumped together would still scarcely be visible. Viruses are little more than bundles of genes - strands of DNA or RNA, the molecules that carry the blueprints for all life. Yet viruses are far from simple. They invade ar ...
    Related: biological, white blood cells, yellow fever, common cold, contracts
  • Biology And Human Evolution - 1,381 words
    Biology And Human Evolution Human Biology and Evolution Humans are Alive The earliest human life form can be traced back more than 3.5 billion years ago. Humans are said to be descendants of a single celled ancestor. Although they are different in size and shape all basic functions are alike. The more complex the organization of the cell became the more successful and developed it became. As these single celled organisms developed they became known as pre-humans. We share many characteristics with these pre-humans. Some of these characteristics include the masters of heredity DNA and RNA as well as proteins composed of amino acids, membranes or bound cells and lastly controlled cell division ...
    Related: biology, evolution, human biology, human brain, human evolution, human life
  • Biology Molecule - 1,080 words
    Biology Molecule Unit 1 -man is high 50s to 60% water -distribution in body divided into 3 compartments: 1) intracellular - 28 litres 2) intercellular/interstitial fluid - 11 litres - 80% 3) blood plasma - 3 litres - 20% -women contain less water than men -organisms can contain 60-80% water -bacteria have lots of water -fat cells have little -waters properties result from its structure and molecular interactions -water is polar -polar covalent bonds and asymmetrical shape give it opposite charges on opposite sides -electrons spend more time around O giving H a slight positive charge -hydrogen bonds form between the oxygen of one molecule and the hydrogen of another -cohesion: substance being ...
    Related: biology, molecule, nucleic acids, human body, atom
  • Biology Molecule - 1,108 words
    ... covalent bond or a glycosiolic link -bond is angular and forms a spiral called an alpha helix -if it branches, amylopectin is formed -cellulose is a 1-4 linkage of beta glucose -this creates a straight strand and not a helix -these bonds are rigid and require special enzymes (cellulase) to break them -the position of the beta glucose molecules alternates Lipids: -humans rarely eat pure lipids -cell membranes are primarily lipid and lipids can easily enter cells, carrying a foods flavor with them -a diet should have less than 30% fat, 55-65% carbs, and 10-15% protein -lipids are important as a source of energy, insulation (adipose tissue), cushions for the internal organs, as a lubricant, ...
    Related: biology, molecule, heart disease, boiling point, blood
  • Biology Of Earth - 545 words
    Biology Of Earth Sometime during our lives, we've questioned ourselves at one point just how long has the earth existed and how did life begin? Our Biology book written by: Solomon, Berg, and Martin, shows theories that has taught us that earth is approximately 4.6 billion years old, and the earliest pieces of life form found was dated back to approximately 3.8 billion years old. This only leaves a time space of 800 million years between the formation of earth and the creation of life. Since then, new theories have shown that life may have originated earlier then they thought. From Bernstein, Sanford, and Allamandolas' article, "Life's Far-Flung Raw Materials" comes the theory that only abou ...
    Related: biology, amino acids, building blocks, raw materials, evolution
  • Biotin - 873 words
    Biotin Biotin is important for healthy hair and skin. 100 mg of biotin may prevent hair loss in some men. Biotin helps to relieve muscle pain. It promotes healthy nerve tissue, bone marrow and sweat glands. It also relieves seborrheic dermatitis in infants. Biotin works with folic acid and vitamin B12 to break down fats, protein, and carbohydrates. Biotin is found in most foods and also manufactured by bacteria in the intestinal tract. Most biotin deficiencies are associated with the consumption of raw egg whites which contain avidin. Avidin binds with biotin to prevent its absorption into the blood. Cooking the egg whites deactivates avidin. Biotin is non-toxic and probably not required in ...
    Related: information age, amino acids, side effects, marrow, fashion
  • Brca Brca - 2,511 words
    Brca1 & Brca2 Are Women More Susceptible to Breast and Ovarian Cancer If a Mutation in BRCA1 and BRCA2 is Found Breast and Ovarian cancer are the two most common kinds of cancers found in women in the United States. An estimated 90-95% of cancer cases are believed to be environmental and lifestyle related. The remaining five to ten percent of these types of cancers may be caused by inherited genetic mutations. The existence of a breast cancer susceptibility gene known as BRCA1 and its approximate location on human chromosome 17 have been known for about 4 years, on the basis of retrospective family studies. But only since 1994 have scientist actually been able to isolate and sequence the gen ...
    Related: breast cancer, cancer research, more prone, mutated, rough
  • Breast Cancer - 1,598 words
    Breast Cancer Hereditary breast cancer is a disease caused by mutations on breast cancer suppresser genes (ACCV Pg.17). Mutations allow normal cells to divide abnormally (ACCV Pg.13). Resulting cells divide faster as they do not specialize and form useless lumps of cells called malignant tumours (ACCV Pg.13). Genetic Screening is the process where Deoxyribonucleic Acid (DNA) fragments are analyzed for a specific gene. The purpose is to identify individuals carrying disease causing genes so they can change their life style and also help invent a cure (ACCV Pg.20). This is done by amplifying DNA withdrawn from an individual, then specific gene mutations are targeted using the Electrophoresis p ...
    Related: breast, breast cancer, cancer, fact sheet, clinical practice
  • Cannabis Hemp Marijuana - 2,195 words
    ... lity is strong enough that we must try. Ultimately, the world has no other rational environmental choice but to give up fossil fuel. ENERGY SECURITY At this point, we can tell OPEC goodbye forever. The national balance of payments deficit is cast by the wayside and your personal energy bills can by cut by at least 50%, and perhaps as much as 90% with biomass from hemp and recycled waste. No more elderly or poor people freezing to death or living in misery in the winter. If introduced to Third World nations, hemp biomass could drastically cut our overseas aid and reasons for war, while raising the quality of life there by quantum leaps. The world's economy will/should boom as it never has ...
    Related: cannabis, hemp, marijuana, marijuana prohibition, u.s. government
  • Cause For Vegetarianism - 644 words
    Cause for Vegetarianism Let American Consumer Counseling Help you Get Out of Debt! Cause for Vegetarianism The choice of eating meat or not has been a debated issue for a continued number of years. There have long since been two sides: the proponents and opponents of meat consumption. More and more debates of its value and effect on the world have risen. Many claim it is wrong, while others think of it as a needed pleasure. Today, a greater percentage of the population eats meat. Only a few individuals seek the alternative route. Yet, there has been a steady rise in the number of vegetarians. Many may already know that religions all over the world have advocated a meat-free diet. While a few ...
    Related: vegetarianism, human body, vegetarian diet, ancient times, rarely
  • Cell Communication - 1,237 words
    Cell Communication Physiology In the human body there are many parts that work together in order for everything to function properly, but even these parts need to have a way to know what to do. This is where cell communication comes into play. Tiny cells in the body contain astounding networks that allow for this communication. Scientists are discovering why these messages from cell to cell are so efficient, and this could lead to new therapies for diseases. In the past 15 years, scientists have discovered more of the code the cells use for their internal communications. Signal transmission begins when a messenger "docks" temporarily with a specific receptor on a recipient cell. This recepto ...
    Related: cell, communication system, human cells, building blocks, module
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