Iodine

While the iodine composition wasn’t equal, caffeine was the closest to unknown one. Unknown two was found to be most similar to Aspirin due to the low Rf values and and lack of appearance underneath an UV light. Neither of them presented any color or distinction under the lights and aspirin only lightly showed any trace of iodine components. Unknown three seemed most similar to Acetaminophen and caffeine. This is because

by neutropenia, bone abdomalities and microcytic anaemia that fails to respond to iron. Cardiac function is impaired in selenium deficiency. Iron makes part of haemoglobin and myoglobin. Deficiency of iron causes anaemia. Iodine is needed for thyroid hormone. Deficiency of iodine causes goiter, cretinism and impaired development. Universal salt fortification is recommended. Calcium is important for bone formation and prevent osteoporosis. Food source dairy leafy greenvegetables bony fish. Vitamin

either the positive or negative control depending on what organic substances or contains. For example, when the presence of starch was tested using iodine, it was shown that the iodine turned a black color when in the presence of starch, but did not change otherwise. And since french fries contain starch, the mashed up french fries turned black when iodine

we will need 4 test tubes with amylase and starch in it, water baths/water boiler with will be making the temperature 4, 21, 40, 60 and 100. And iodine to test the amount of leftover starch. We will be mixing starch with amylase (test tubes) in different temperatures (4, 21, 40, 60, 100). Then we will add the mixture of amylase and starch, to the iodine in the wells. We add it because we want to see how fast amylase can digest starch in different temperatures.

The thyroid gland is an organ located in the neck on either side of the trachea. It secrets thyroxine, triiodothyronine, and calcitonin. It releases hormones that control your metabolism, breathing, heart rate, nervous system, weight, body temperature, and many other functions in the body. Hyperthyroidism is a condition in which the thyroid gland is overactive and the body’s processes speed up and you may experience anxiety, nervousness, hand tremor, rapid heartbeat, excessive sweating, weight loss

it with sodium thiosulfate in the presence of iodide ions and starch. A solution of sodium thiosulfate of known concentration will be added to the bleach using a buret in a titration procedure. The disappearance of the dark blue color of the starch-iodine complex will signal the end point. II. Procedures Pre-Lab Questions 1. What is meant by a “titration”? Titration is a technique where a solution of known (acid or base) concentration is used to determine the concentration of an unknown (acid

Garrett Stewart Mr. Dinunzio Honors Biology 22 November 2016 Murder and a Meal Lab Report The purpose of this lab was to test different substances using various procedures to see what biomolecules were present and ultimately find out what restaurant Anna Lyza had eaten at before she died. For the first control test, we used vegetable oil to test for lipids. So, if the solution does not contain lipids, it does not become translucent when placed onto a paper bag square and held up to a light

Vitamin C Lab How does the amount of Vitamin C change in orange juice in different environments over time? Andrew Studzinski 12th grade Elyria High School Ms. Fontenot Acknowledgements I would like to thank Mr. Brillhart for allowing me to use his fume hood for my experiment as he also had his environmental science class’s plants in the fume hood at the time and earth/space science class at the time of which I would come in to retrieve my orange juice and return my orange juice to his fume hood

Side reactions are reactions that compete with one another that produce unwanted products. One of the competing reactions with the Grignard reaction was the Grignard reagent reacting with oxygen to form peroxide which is very reactive. The second most electronegative element is oxygen. The second competing reaction was the Grignard reagent reacting with carbon dioxide to form a carboxylic acid. The carbon dioxide contains an electrophilic carbon. The products from these two side reactions that are

that contains the tumor (lobectomy). If the cancer has spread to other parts of the body, such as the lymph nodes, these can also be removed. Sometimes radioactive treatment is recommended along with the removal of the thyroid gland. Radioactive iodine therapy (RAI) is always done for more advanced cancers, such as those that have been staged as T3 or T4 and follow-up hormone treatment is started. If RAI doesn’t appear to work and the cancer remains, external beam therapy, targeted therapy, and/or