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Enzymes, 2004.
This paper discusses enzymes and related information.
900 words (approx. 3.6 pages), 1 source, MLA, $ 31.95
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Abstract
In this article, the writer examines the general structure of enzymes. The writer discusses how enzymes act to speed up chemical reactions. The writer details the six major groups of enzymes: oxidases, lysases, ligases, isomerases, transferases and hydrolases.
From the Paper
"Enzymes are special proteins which act to speed up chemical reactions because many chemical reactions required for cells to function normally would not take place at the temperature and pH found in the body. The protein part of the enzyme without any co-factors or prosthetic groups attached is known as the apo-enzyme. Not all enzymes have co-factors or prosthetic groups. Co-factors are small inorganic or organic molecules which are required for enzymatic activity of the apo-enzyme such as the copper loosely bound to lysine oxidase ... "
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Immunohistochemistry, 2004.
This paper looks at the process of immunohistochemistry.
1,800 words (approx. 7.2 pages), 10 sources, MLA, $ 63.95
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Abstract
In this article, the writer discusses the techniques of immunohistochemistry. The writer examines how these techniques are applied to the study of neuro chemical pathways in the mammalian brain. In this article, several studies using immunohistochemical methods to study brain neuro chemistry are examined.
From the Paper
"An antibody is a protein produced by lymphocytes of the immune system in response to the presence of a foreign antigen in the system. It usually binds to the foreign antigen and causes it to precipitate from the circulation. Antibodies can be purified in the laboratory and conjugated chemically bonded to a variety of substances including a fluorescent dye such as fluoresce-in. This conjugated antibody can then be applied to sections of tissue that have been lightly fixed or frozen so that the location ... "
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General Biology, 2005.
This paper looks at general biology questions dealing with glycolysis.
2,700 words (approx. 10.8 pages), 9 sources, MLA, $ 95.95
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Abstract
This paper answers a number of questions on general biology dealing with glycolysis, Krebs cycle, electron transport phosphorylation, respiration, mitosis, meiosis, crossing over, independent assortment and random fertilization.
From the Paper
"Cellular respiration is the process of oxidizing food molecules such as glucose to carbon dioxide and water. Kimball Energy is released in the form of ATP which is used for all the energy consuming processes of the cell. There are two stages to the process, glycolysis which is the breakdown of glucose from the diet to pyruvic acid and the complete oxidation of pyruvic acid to carbon dioxide and water. In eukaryotes glycolysis takes place ... "
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Osmotic Pressure, 2005.
This paper discusses osmosis and looks at osmotic pressure.
2,700 words (approx. 10.8 pages), 7 sources, MLA, $ 95.95
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Abstract
In this article, the writer offers a definition of the process of osmosis. The writer answers specific questions on the effect on cells of osmotic pressure. The writer then discusses the transport of large molecules into cells. In this paper, the writer examines thermodynamics and enzymes. The writer alos presents technical information in this regard.
From the Paper
"Osmosis is the process of diffusion of water molecules across a membrane. The contents of cells are basically solutions of many different solutes and the more concentrated this solution is the more solute molecules there are in a given volume and the less water molecules. Water molecules can diffuse freely across a membrane but only down a concentration gradient so water always diffuses from a dilute solution to a more concentrated solution. Osmosis can be quantified using water potential so it is possible to calculate ... "
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Iontophoresis of LiHCl through a Cellophane Membrane, 2005.
This paper discusses passive and iontophoretic drug delivery of LiHCl through a cellophane membrane.
3,150 words (approx. 12.6 pages), 7 sources, MLA, $ 111.95
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Abstract
This paper offers a discussion section for dissertation on the iontophoresis of LiHCl through a cellophane membrane. In this article, the writer offers an analysis of experiment results. The paper includes a critique of the experiment performed. The writer also discusses possible future directions for study.
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Chemistry of Snow, 2005.
This paper discusses various aspects of snow.
675 words (approx. 2.7 pages), 4 sources, MLA, $ 23.95
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Abstract
This essay looks at how snow is formed. The writer discusses the factors which determine the structure of snowflakes. In this article the writer examines what makes snow melt. The writer also looks at the efficiency of different salts for melting snow. In addition, the writer discusses briefly the impact of snow on society.
From the Paper
"Snowflake Factors which affect snowflake formation include temperature, air, currents, humidity, which affect the size and shape of snowflakes and dirt and pollutants mixed in water which affect the crystal weight and durability in snow. Dirt particles make the snowflakes heavier which causes cracks and breaks in the crystals and make the snow melt more easily. In general snowflakes which are six-sided hexagonal shapes and are formed in high clouds, needles or ... "
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Biochemistry and Prostate Cancer, 2004.
This paper looks at prostate cancer and related biochemical research.
2,250 words (approx. 9.0 pages), 3 sources, MLA, $ 79.95
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Abstract
In this article the writer discusses prostate cancer. The writer also examines some of the biochemical research that is being carried out to try and determine the causes of this type of cancer. The paper looks at the oxidative stress on cells and the effects of androgen. The writer discusses NSAID-associated gene protein and some of the multi-drug resistance associated proteins.
From the Paper
"Prostate cancer is a disease of aging brought about by changes in cellular biochemistry which result in an imbalance in the pro oxidant-antioxidant balance and in the cellular response to androgen which this brings about. Many advanced cases of prostate cancer become resistant to chemotherapy making the prognosis for those men dismal. It has been shown ... "
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The Scientific Contributions of Friedrich August Kekule, 2005.
This paper looks at the career and the scientific contributions of Friedrich August Kekule.
675 words (approx. 2.7 pages), 5 sources, MLA, $ 23.95
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Abstract
In this article, the writer discusses the background, career and scientific contributions of Friedrich August Kekule. The writer looks at this scientist, who put forward the theory of tetravelence for carbon and determined the structure of benzene. The writer explains the importance of Kekule's theories as these two scientific contributions are those upon which organic chemistry is based.
From the Paper
"Friedrich August Kekule was born in Damstadt, Germany and attended the Gymnasium in his home town excelling at languages and drawing. He went on the University of Giessen planning to study architecture but after attending a lecture by Liebig of condenser fame, Kekule became fascinated with chemistry. He spent a year at home pondering a decision and decided to pursue an education in chemistry. Kekule studied in Paris under Dumas substitution theory and Gerhardt type theory then returned to Giessen to ... "
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The Law of Definite Proportion, 2005.
Examines the law of definite proportion through a chemistry experiment.
1,350 words (approx. 5.4 pages), 4 sources, APA, $ 47.95
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Abstract
This is a report on an experiment in chemistry on the law of definite proportions. It looks at the decomposition of potassium chlorate to potassium chloride with heating.
From the Paper
"The law of definite proportion states that different samples of a pure compound always contain the same elements in the same proportions by mass. For example, sodium chloride always contains sodium and chlorine by mass. In this experiment a sample of potassium chlorate was thermally decomposed to determine the mass percent of oxygen in the compound. A crucible containing g MnO catalyst was weighed and g KClO was added and the crucible and contents reweighed. A thermometer was placed in the crucible and..."
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Organic Chemistry, 2005.
An overview of the fundamentals of organic chemistry.
2,250 words (approx. 9.0 pages), 6 sources, APA, $ 79.95
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Abstract
This paper answers some questions on Lewis Dot structures, polarity of molecules, molecular and electron geometry of molecules, and gives some dot structures, polarity and molecular data on a number of chemicals.
From the Paper
"The difference in polarity between CO and SO can be explained by their molecular shape. The CO has a linear shape being O C O. There are two electron domains around the central carbon atom therefore it is linear. There is no charge on the molecule because there are no lone electron pairs. The SO molecule is a bent molecule existing as a resonance structure with a lone pair of electrons on the S. The molecule has an S-O single bond and an S O double..."
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Calorimetry, 2005.
Describes one chemistry experiment in calorimetry and one looking at the specific heat of metals.
1,800 words (approx. 7.2 pages), 4 sources, APA, $ 63.95
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Abstract
This paper is a write-up of two experiments in chemistry. The first is a write-up of an experiment in calorimetry, looking at the heat of fusion of ice. The second is an experiment on the specific heat of metals, looking at the specific heats of copper and tin. The experimental details are described.
From the Paper
"The first experiment looks at the heat of fusion of ice -- the amount of heat needed to convert a solid into a liquid at constant temperature and pressure is the heat of fusion of the substance. The molar heat of fusion is the amount of heat energy required to completely change one mole of solid into one mole of liquid at its melting point. In this experiment the molar heat of fusion of...."
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Enthalpy Change of a Chemical Reaction, 2005.
Describes a laboratory exercise studying the enthalpy change of a chemical reaction.
900 words (approx. 3.6 pages), 3 sources, APA, $ 31.95
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Abstract
This paper describes a chemistry experiment in enthalpy change during chemical reactions. It looks at the enthalpy change in the reaction between magnesium and hydrochloric acid. The experimental method is described and the results analyzed. The write-up shows details of the experiment recorded and how the calculations are made.
From the Paper
"This laboratory exercise studied the enthalpy change of a chemical reaction between magnesium (Mg) and hydrochloric acid (HCl) The experiment is designed to calculate the energy released from a single replacement reaction. The reaction is exothermic, i.e., it gives off heat. An empty calorimeter was weighed and the temperature of the calorimeter recorded. A g sample of Mg was added to mL HCl an the calorimeter with a thermometer attached. The maximum temperature reached during the reaction was recorded. The final weight of the calorimeter..."
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