The presence of carbohydrates in a solution can be determined by a qualitative test of Molisch test. Molisch test is a general‚ sensitive chemical test and positive for all kinds of carbohydrates which in free form or in combined form. The test is based on the dehydration of the carbohydrate by concentrated sulfuric acid to produce an aldehyde which condenses with two molecules of phenol‚ resulting in a coloured compound. Molisch reagent is a solution of α-napthol in 95% ethanol. The aldehydes produced
Premium Glucose Carbohydrate Nutrition
tuberoinfundibular system. The dopamine hypothesis of schizophrenia states that psychosis occurs when there is too much dopamine in the brain. This occurs through its role in the mesocortical system. There is much evidence to support this theory. For example‚ as mentioned previously‚ illegal drug abuse with substances that release dopamine in the brain such as cocaine‚ amphetamine‚ methamphetamine‚ and ecstasy‚ can cause symptoms of
Premium Antipsychotic Dopamine Schizophrenia
change when the shape changed and I found this extremely challenging to overcome. By looking into the subject more deeply‚ I thought I would find ways to challenge these misconceptions. Key Concepts and Misconceptions of Area When defining area‚ Koshy et al (2000) discuss that it is a two dimensional concept and relies on comparison with a square due to measures of area being in centimetres squared (cm2) or metres squared (m2). Due to the nature of these measurements‚ it is easy to see why children
Premium Rectangle Mathematics Area
ecological and environmental forces. An ecological force such as human hunters are one hypothesis that is believed to have caused the extinction of the megafauna. This hypothesis is known as the “overkill hypothesis.” (Cushman lecture 2/15/18) This hypothesis believes that the excessive practices of human hunters are what caused the large mammals of the North Americas to go extinct. An environmental force hypothesis that is also widely proposed is climate
Premium Extinction Dinosaur Evolution
How to write a paper Toby Walsh National ICT Australia and UNSW‚ Sydney http://www.cse.unsw.edu.au/~tw How to write a good paper Toby Walsh National ICT Australia and UNSW‚ Sydney http://www.cse.unsw.edu.au/~tw How to write a good enough paper Toby Walsh National ICT Australia and UNSW‚ Sydney http://www.cse.unsw.edu.au/~tw Why me? • I’m not sure • Many other researchers who consistently get their papers published Peter van Beek‚ Pascal van Hentenryck‚ ... Often win best paper
Premium Paper Writer Writing
Background In the Flame test lab we took a simple wire‚ looped it‚ and rinsed it in HCL (Hydrochloric Acid ). Then we dipped the wire in the different samples provided. The samples provided were Sodium‚Potassium‚Calcium‚ Barium‚ Strontium‚ Lithium ‚ and Copper II. Finally we put the wire loop into the flame of the bunsen burner. The flame erupted into many different colors for each specific sample. We then used the colors we recorded to find the two unknown samples given to us. But the question
Premium Oxygen Light Chemistry
Measuring The Percent of Body Fat by Skin Fold Measures‚ Body Mass Index (BMI) and Waist Girth to Assess Associated Risk of Cardiovascular Disease Risk On a Young Adult Female Student. Objectives The objective of this experiment was to collect data for the skinfold calipers‚ BMI and body composition formulas. For the skinfold calipers‚ we had to measure different body sites. After the data was gathered we used this to calculate different classification we were and how the scores
Premium Nutrition Obesity Body mass index
How to Write a Research Paper © Copyright 1999‚ Charles King Most university courses involve some sort of extended writing assignment‚ usually in the form of a research paper. Papers normally require that a student identify a broad area of research related to the course‚ focus the topic through some general background reading‚ identify a clear research question‚ marshal primary and secondary resources to answer the question‚ and present the argument in a clear and creative manner‚ with proper
Premium Primary source Research Social sciences
My partner and I were given unknown number 3 in the laboratory. After performing various tests over the course of a few weeks on our unknown‚ we came to the conclusion that our unknown organism is Klebsiella pneumoniae (K. pneumoniae). K. pneumoniae is a gram negative bacillus shaped microorganism. We observed that K. pneumoniae is a nonmotile organism. We performed multiple tests on our unknown culture‚ therefore we are very confident that it is correctly identified. We identified that K. pneumoniae
Premium Bacteria Microbiology Gram staining
DESCRIBING MY SHELL My object is a shell‚ a shell like any shell made from the same material like any others‚ but my shell has a different form that makes it really special. The sandy clear color‚ and the curved lines on its exterior seem like a finger print to describe its individuality. Its shiny smooth inner part has a hole. A Hawaiian beach without water in it. A black round part on the top seems like its head. The shape of the yellow dog was created on its soft bright side. So sweet this
Free Seashell Eye Debut albums