Essays Tagged: "catalyze"

Asymmetric Epoxidation of Dihydronaphthalene with a Synthesized Jacobsen's Catalyst

Mn(OAc)2*4H2O and LiCl to form Jacobsen's catalyst. The synthesized Jacobsen's catalyst was used to catalyze the epoxidation of dihydronaphthalene. The products of this reaction were isolated, and it ... ductionIn 1990, professor E.N. Jacobsen reported that chiral manganese complexes had the ability to catalyze the asymmetric epoxidation of unfunctionalized alkenes, providing enantiomeric excesses tha ...

(9 pages) 69 0 3.7 Dec/1996

Subjects: Science Essays > Chemistry

"All the King's Men" by Robert Penn Warren.

ting a bribe from the American Electric Power Company, and Jack digging for dirt on Judge Irwin all catalyze a chain of events that completely nullify Jack's consoling theory of the Great Twitch.Jack, ... aphor likening history to a semiconscious spider, never fails in its duty to administer justice, to catalyze the consequences, when someone acts or brushes "the web of things" (189). When Ellis Burden ...

(6 pages) 40 0 4.5 May/2003

Subjects: Literature Research Papers > North American

What enzymnes are?

ent enzymes existing in the world. These enzymes are grouped according to the type of reaction they catalyze, (speed up). There are a thousand different reactions taking place in an individual cell an ... tions such as the digestion of proteins to amino acids to take place.Another group that enzymes can catalyze into are the lysases, where the process of the elimination of a group to form a double bond ...

(9 pages) 74 1 4.3 May/2004

Subjects: Humanities Essays > Health & Medicine

Alcohol's Effects on the Liver

thereby becoming NADH. Thus when alcohol is metabolized, NAD diminishes and NADH increases. Enzymes catalyze the addition of hydroxyl groups to drugs and poisons, thereby making them soluble in the cy ...

(3 pages) 43 0 4.3 Dec/2004

Subjects: Science Essays > Biology > Human Biology

Archibald Garrod

bstances. Garrod concluded that patients suffering from alkaptonuria lacked the enzyme necessary to catalyze this breakdown. He speculated that many other inherited diseases might also reflect enzyme ...

(1 pages) 1668 0 5.0 May/2005

Subjects: Science Essays > Biology

Acid Rain.

ouds and especially in heavily polluted air where other compounds such as ammonia and ozone help to catalyze the reaction, changing more sulfur dioxide to sulfuric acid. However, not all of the sulphu ...

(7 pages) 28 0 3.7 Nov/2005

Subjects: Science Essays > Chemistry

Catalase essay

tions. These biological catalysts are important because they speed up the rate of the reaction they catalyze that would otherwise be too slow to support life. Catalase is an enzyme present in the cell ... es, more of the reacting molecules have the kinetic energy required to undergo the reaction. Enzyme catalyzed reactions also tend to go faster with increasing temperature until a temperature optimum i ...

(4 pages) 70 2 3.3 Mar/2006

Subjects: Science Essays > Biology

Specificity and Catalytic Effectiveness of Enzymes

zyme changes shape slightly, creating an induced fit between the substrate and active site. Enzymes catalyze a reaction by lowering the activation energy in a reaction.The velocity of an enzyme-cataly ...

(1 pages) 22 0 0.0 Apr/2006

Subjects: Science Essays > Biology

Microbial Proteases

with respect to their applications in both physiological and commercial fields. Proteolytic enzymes catalyze the cleavage of peptide bonds in other proteins. Proteases are degradative enzymes which ca ... dispensable by insertional mutagenesis of the gene. Extracts from Lon-deficient E. coli cells still catalyze ATP-dependent proteolysis mediated by a soluble two-component protease, Clp. Two dissimilar ...

(29 pages) 71 0 3.8 Aug/2006

Subjects: Science Essays > Biology

How does John Steinbeck set the scene in the first chapter of "Of Mice and Men"?

f people who are in the dark or are weak. In these ways, he attempts to use the paradise setting to catalyze the storyline into the final chapter where most of the descriptions show a predatory and fi ...

(3 pages) 3771 0 0.0 Apr/2007

Subjects: Literature Research Papers > North American > Authors > John Steinbeck

Antibiotics

ll fails to develop because the final cross-linking reactions that make the cell wall rigid are not catalyzed, an antibiotic such as penicillin can be used to fit into the active site of the enzyme th ... an antibiotic such as penicillin can be used to fit into the active site of the enzyme that was to catalyze such a reaction. As the penicillin attaches, a covalent bond complex is formed that cannot ...

(1 pages) 394 0 0.0 Nov/2001

Subjects: Science Essays > Biology

Application of Enzymes

producing these components requires some special helper known as 'enzyme.'Enzymes are proteins that catalyze or accelerate chemical reactions. Enzymes are biochemical catalysts. Almost all processes i ...

(6 pages) 46 0 5.0 May/2008

Subjects: Science Essays > Biochemistry