Biology Essays

Diffusion Coefficient of 2m NACL in Water
Example essay. Last modified: 7th Aug 2018
Introduction: This experiment aims to determine the diffusion coefficient of a liquid mixture, sodium chloride solution, in de-ionized water. This is done through the use of a honeycomb diffusion cell which consist...

Vegetarian vs Meat Eater Comparison Contract
Example essay. Last modified: 31st Jul 2018
Introduction: Diet plays an important role for our body health. Choosing the right, healthy and balance in diet is very important for everyone. One way to stay healthy is by adopting a vegetarian diet. A vegan diet...

Stress Corrosion Cracking of Brass in Ammonia
Example essay. Last modified: 31st Jul 2018
Introduction: Six samples of brass were taken, stamped to induce residual stress, were then exposed ammonia and ammoniacal copper sulphate solutions of different concentrations and composition for a period of 4 day...

Mycoplasma vs Mycobacterium
Example essay. Last modified: 31st Jul 2018
Introduction: Mycobacteria are aerobic and slender, curved rod shaped species. Since they are aerobic they like to live in areas where oxygen levels are high; such as, apical or upper part of the lungs. Thus, a dec...

Factors Affecting Animal Growth
Example essay. Last modified: 31st Jul 2018
Introduction: Modern cattle are descendants of Bos indicus and Bos Taurus (Gillespie, 1992). According to Lawrie (1991) these breeds are believed to be descended from Bos primigenius, the wild cattle. The last repr...

Overview of Infrared Spectroscopy
Example essay. Last modified: 31st Jul 2018
Introduction: Infrared spectroscopy is the most powerful technique use in the analytical laboratory. Infrared spectroscopy is associated with the infrared region. There are number of compounds (organic and inorgani...

Dissolving Aluminium Chloride in Water
Example essay. Last modified: 31st Jul 2018
Introduction: A controlled variable is a variable that stays the same throughout an experiment such as: adding a specific amount of water to test tubes filled with different amounts of ammonium chloride. An indepen...

Differences in Grid and Air Gap Techniques
Example essay. Last modified: 31st Jul 2018
Introduction: Introduction In this chapter, a literature review was carried out so that adequate information about the differences in grid and air-gap technique could be gathered with emphasis on why these techniqu...

Preparation of Diphenylisoxazoline by a Dipolar Cycloadditio
Example essay. Last modified: 31st Jul 2018
Introduction: Aims The aims of this experiment were: to synthesise a diphenylisoxazoline by a 1,3- dipolar cycloaddition reaction – this involved the preparation of an oxime which was oxidised to form a rathe...

Iodine Clock Reaction: Kinetic Study
Example essay. Last modified: 31st Jul 2018
Introduction: The order of reaction with respect to I ˉ was determined to be 1 and the order of reaction for ˉ was determined to be 1. This was determined through the Method of Initial Rates. The elapsed ti...

Extraction of Essential Oils Using Steam Distillation
Example essay. Last modified: 31st Jul 2018
Introduction: Acknowledging about the importance of plants and its medicinal value research work is being done on the plant material. There are also over 200 references to aromatics, incense and ointments in the Ol...

Permeability of Plasma Membranes
Example essay. Last modified: 31st Jul 2018
Introduction: Introduction Plasma membranes are bi-layered membranes made up of amphiphillic molecules (having charged polar heads tending to be hydrophillic and uncharged fatty acid tails tending to be hydrophobic...

Aim of the Homogenisation Process
Example essay. Last modified: 31st Jul 2018
Introduction: Introduction: Eukaryotic cells such as liver cells enclose a variety of different types of membrane bound structures called organelles (nuclei, mitochondria) as well as macromolecules (ribosomes) (Pad...

Cyclic Voltammetry Principle
Example essay. Last modified: 31st Jul 2018
Introduction: Cyclic voltammetry is the most widely used technique for acquiring qualitative information about electrochemical reactions [34, 35]. The power of cyclic voltammetry results from its ability to provide...

Advantages and Disadvantages of Cryopreservation
Example essay. Last modified: 31st Jul 2018
Introduction: In the world of science this two procedures Vitrification and Slow cooling are use to keep the biological materials such as cells, bone marrow , DNA etc at the low temperature , when compared to their...

Pipe Surge and Water Hammer Experiment
Example essay. Last modified: 31st Jul 2018
Introduction: The objective of the work undertaken was consisted two separate experiments, pipe surge and water hammer. These are both caused by a reduction in the flow rate within a pipe. They are two alternative ...

Debromination and Bromination of Cholesterol
Example essay. Last modified: 31st Jul 2018
Introduction: Bromination/debromination which is an important organic reaction that aims in purification of crude cholesterol from impurities which include 3-cholestanol, 7-cholesten-3-ol, and 5,7-chlestadien-3-ol ...

Changing Concentration of Hydrochloric Acid
Example essay. Last modified: 31st Jul 2018
Introduction: How will changing the concentration of hydrochloric (HCl) acid affect the rate of hydrogen gas (H2) production during the reaction with magnesium (Mg), using the pressure buildup by hydrogen gas? Intr...

Determination of Stomatal Index
Example essay. Last modified: 31st Jul 2018
Introduction: The Plant material of Viscum capitellatum Smith. parasitism on Dendrophthoe falcata which is itself parasitic on M. indica was collected from Amba Ghat, Kolhapur, Western Ghat region of Maharashtra fr...

Ethyl Acetate Properties
Example essay. Last modified: 31st Jul 2018
Introduction: Ethyl acetate is the most popular ester from ethanol and acetic acid. It is manufactured on a large scale for use as a solvent. Ethyl acetate is a moderately polar solvent that has the advantages of b...

Compare and Contrast Cardiac and Skeletal Muscle
Example essay. Last modified: 31st Jul 2018
Introduction: Something that differentiates animals from other organisms is their ability to voluntarily carry out actions using their muscles. They do this by muscle cells changing length, which is known as contra...

Optimum Temperature for Catalase in Potato
Example essay. Last modified: 31st Jul 2018
Introduction: Hydrogen peroxide is a common by-product produced during metabolism in living organisms. On accumulation, hydrogen peroxide can have various implications on living cells such as skin disorders (Schall...

Effects of Climate Change on Human Health
Example essay. Last modified: 31st Jul 2018
Introduction: Climate change has become a hot issue lately. 21st century has to face a new crisis that could have long term effects on the world as well as on human health. Climate change becomes a hot topic now be...

Application of Gas Chromatography in Pharmaceutical Analysis
Example essay. Last modified: 31st Jul 2018
Introduction: Chromatography is a physical method of separation in which components to be separated are distributed between two phases, one of which is stationary phase while the other mobile phase move in a defini...

Angiosperm Questions
Example essay. Last modified: 31st Jul 2018
Introduction: Jump to: Answers Identify the letter of the choice that best completes the statement or answers the question. 1. The products of meiosis in plants are always which of the following? a. spores b. egg...