Experiment 11: Peptides and Amino Acids The purpose of this experiment was to study the amino acid composition of artificial sweeteners and then observe simple acid and base catalyzed reactions of the amino acid and artificial sweetener aspartame. This was achieved by performing a TLC analysis using ninhydrin as an indicator to observe the composition of the amino acid as well as two of the components that make up aspartame. This is followed by the addition of an acid or base to aliquots of diet sodas to examine the resulting reactions and compare them to a known hydrolyzed aspartame sample. The most common method of synthesizing amides is through the reaction of a primary or secondary amine with a carboxylic acid derivative.…
This person was born on March 18, 1837 in Caldwell, New Jersey. He was the fifth of nine children, and his father was a Presbyterian minister. Because the church regularly transferred their ministers, the family moved many times, primarily around central and western New York. The death of his father in 1853 forced him to abandon school in order to support his family. He worked as a teacher in a school for the blind in New York City and then worked as a clerk in a law firm in Buffalo, New York.…
He was one of the few in his family to go to college. He excelled in medicine and received a medical degree from Indiana Medical College and a science degree at Harvard. At the age of 37, he began teaching chemistry to students at Purdue University. In 1883 he gave up his life as a teacher and moved to washington D.C. and became a chief chemist in what is now the Department of Agriculture. His passion still remained the same as he continued to develop tests for food purity.…
Christianity Gives Direction How does Christianity give direction? In chapter 70 of The Discoverers, the pages are filled with examples of how Christianity paved the way in history. Today’s authorities in the church still aspire to pave the way in history. More specifically the history that will tell the immigration story.…
The place and date of his birth are uncertain, but he was probably born in the early 1840s near Bear Butte on the Belle Fourche River in South Dakota. His father was a medicine man…
At the age of 19 he earned his Bachelors of Science degree, in 1934. With the excellences he demonstrated in…
He did some of the earlier works on L-dopa and was involved in isolating a cure for cholera. He headed for a clinic owned by the American Heart Association in a town called Hazard. This is the fateful place he met Ruth. Together they searched for blue people. They never could seem to catch one in time.…
He was born on December 16 1938. He died at age 26, he was a former soldier, youngest deacon at his church, and a father of a young daughter.…
Charles J. Epstein was a highly regarded geneticist who made tremendous contributions to the medical field during his lifetime. He was born on September 3, 1933 in Philadelphia, Pennsylvania to Jacob C. Epstein and Frieda Epstein, Jewish immigrants from the Ukraine. During his high school years at Central High School, he excelled at academics and enjoyed track and field, and played the cello. After completing high school he went on to Harvard College where he graduated summa cum laude and received a chemistry degree. He married his girlfriend and fellow Harvard student, Lois Barth, despite being warned to wait until after they had both completed medical school.…
He graduated high school in 1930. His father wanted him to work in the factory. Instead, he went to a university to study medicine. He got his PhD in physical anthropology.…
Linus Pauling was a very facile scientist. He is known by his colleagues to be the most influential chemist since Lavoisier (who was, in the 18th century, recognized to be the founder of the modern science of chemistry.) For a man that lived on this earth only 93 years, he made many strides in his areas of expertise. This was mainly chemistry, physics and molecular biology. He studied the nature of the chemical bond; also with Vitamin C, which he proclaimed could be a preventive for colds.…
BIOL 1010 ‐ Biotechnology and Society Assignment #1 The Carleton Prize for Biotechnology Saifullah Haji Mohammad Eessa (100965270) October 06, 2015 Carleton University Introduction The group I would like to nominate for The ‘Carleton Prize for Biotechnology’ is comprised of three well-known scientists, James Dewey Watson, an American geneticist; Francis Crick, a British molecular biologist, and Maurice Wilkins, an English physicist and molecular biologist. The three worked together and achieved a significant impact on biotechnology in terms of the discovery of DNA structure (the double helix), and therefore they had been awarded Nobel Prize in 1962 (Watson, 1968).…
If a patient were to have a single finger amputated during the mid-nineteenth century, his or her surgeon could expect a death rate of roughly 50% due to the spread of infection (“Joseph Lister”). Today’s death rates due to surgical operations are significantly lower due to the work and contributions of one biologist: Joseph Lister, the pioneer of cleanliness in surgical practices (“Joseph Lister (1827-1912”). Joseph Lister was born to Joseph Jackson Lister and Isabella Harris in the village of Upton, England on April 5th, 1827 (“Sir Joseph Lister”). The elder Joseph Lister researched optics, the study of light, which initially motivated the younger Joseph Lister to become involved in the biological community. In addition, Lister’s father’s inquiries aided in creating an important tool in biology: the compound microscope.…
ydney Brenner was born in January 13, 1927 in Germiston, South Africa. Brenner’s parents were Jewish immigrants. His father was a shoe repairer and they lived in rooms that were at the back of his father’s store. Brenner started to read at a young age. One of his father’s customers, Miss Walkinshaw, encouraged Brenner’s father to allow Brenner to go to her kindergarten without charge.…
They have different functional groups. Methionine is considered a group 1 non polar amino acid. The R group of this amino acid has either aliphatic or aromatic groups which makes them hydrophobic. Methionine is one of the two amino acids that possess a sulfur atom. It plays a central role in protein biosynthesis such as translation.…