The Skeletomuscular System

The skeletomuscular system allows us to move through the environment using different modes including walking, running, eating, typing on a computer, and even driving a car. But sometimes accidents happen, like a slip on the ice resulting in a broken wrist, or a long run leading to achy joints. Respond to the two topics below for this units Discussion.Many of us know someone who has broken (or fractured) a bone, whether it is a wrist, […]

Hepatitis A

Hepatitis A is a disease that is infectious, affects the liver, and is caused by hepatitis A virus (HAV). Although the disease started long ago during the World War II, it was not until in 1973 that the illness was discovered. The incubation period of the virus is six weeks and the symptoms last for another eight weeks and recurs after six months. The disease may result in damage to the liver, especially in older […]

Stem Cells

Stem cells are a type of biological cells that are found in the higher animals. They are undifferentiated and can undergo specialisation to produce cells that are adapted for specific functions in the body. Their uniqueness lies in the fact that these cells can self- renew and make copies of themselves, and they can also differentiate and give rise to specialised cells. The stem cells could either be embryonic in origin (derived from the blastocysts), […]

Lab Report: Wittig Reaction

AbstractThe purpose of the Wittig reaction is to make a carbon-carbon double bond and have more carbons in the products than the reactants. One part of the carbons comes from the alkyl halide and the other one from an aldehyde or ketone. The reaction must start with Ph3P (Triphenyl phosphine), and via a Sn2 reaction, the electron from the Triphenylphospine attacks the carbon on benzyl chloride. The chlorine leaves, making the alkyle halide nucleophilic.The Benzyltriphenylphosphonium […]

A Facile Synthesis of Triphenylmethanol and Benzoic Acid by Grignard Reaction

A Lab Report Abstract In the laboratory, there are numerous ways of synthesizing organic target molecules using different starting materials and reaction conditions. Therefore, considering factors such as cost of reagents, percentage yield, complexity of the experimentation process, and time taken to create the desired compounds, it is possible to identify the most appropriate method to use. In this experiment, Grignard reagent, phenylmagnesium bromide, was prepared by reacting bromobenzene with magnesium metal in dry diethyl […]

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