Homework Answers
Add Answer to:
1. The reaction below is usually an enzyme-catalyzed process in the biosynthesis of amino acids. he...
For biosynthesis of amino acids, NH3 is necessary. NH3 is prepared from N2 gas through a...
For biosynthesis of amino acids, NH3 is necessary. NH3 is prepared from N2 gas through a nitrogen-fixation process, which is catalyzed by the _______. This enzyme has a unique _______ reaction center. Select one: a. nitrogenase : Fe-S b. nitrate reductase : Fe-S c. nitrate reductase : Mo-Fe d. nitrogenase : Mo-Fe
2. The reaction below is catalyzed by the CK enzyme: NH2 OP H2N H₂N N Ń...
2. The reaction below is catalyzed by the CK enzyme: NH2 OP H2N H₂N N Ń cooK COO - INN CO + ATP + ADP Below is a picture of the active site for this enzyme. The red atoms are the amino acids in the CK protein. The blue structure is the substrate, the orange is the phosphate end of ATP. All dashed lines are showing interactions and the curved arrows are showing the mechanism. The wavy lines indicate that...
The lysozyme reaction is shown below: 1. The lysozyme reaction is a bimolecular enzyme-catalyzed reaction. The...
The lysozyme reaction is shown below:
1.
The lysozyme reaction is a bimolecular enzyme-catalyzed reaction.
The two substrates are the NAG-NAM polymer and a water molecule.
What bimolecular kinetic model will lysozyme follow? Justify your
answer.
2. Typically, we would confirm the bimolecular model with a set
of kinetic experiments and the resulting Lineweaver-Burk plots.
Explain why it would be experimentally difficult to use this
strategy for lysozyme.
Glu-35 Glu-35 H00 HO НО Lo—NAG HO— HO-NAG + H20_ NAG. NAG...
Carboxylic Acids and their Derivatives. 1. For the reaction below, give a detailed mechanism for both...
Carboxylic Acids and their Derivatives.
1. For the reaction below, give a detailed mechanism for both an acid-catalyzed and base-catalyzed reaction. (2pts) + CH OH IN Acid Catalyzed Mechanism: Base-Catalyzed Mechanism: 2. How would you carry out the following syntheses. (4pts) CN
2. The reaction below is catalyzed by the CK enzyme: NH O | NHA | СК...
2. The reaction below is catalyzed by the CK enzyme: NH O | NHA | СК O= H₂N Ņ coo eo T N con + ATP + ADP Below is a picture of the active site for this enzyme. The red atoms are the amino acids in the CK protein. The blue structure is the substrate, the orange is the phosphate end of ATP. All dashed lines are showing interactions and the curved arrows are showing the mechanism. The wavy...
The role of an enzyme in an enzyme-catalyzed reaction is to: Select one: a. make the...
The role of an enzyme in an enzyme-catalyzed reaction is to: Select one: a. make the free-energy change for the reaction more favorable. b. ensure that the product is more stable than the substrate. c. ensure that all the substrate is converted to product. d. increase the rate at which substrate is converted into product. e. do none of the above. The focus of the online practical lesson was the enzyme chymotrypsin. The catalytic mechanism by which chymotrypsin reactions occur:...
Can you check my answers please? To answer the questions below use the following information: Cyanohydrins...
Can
you check my answers please?
To answer the questions below use the following information: Cyanohydrins are important intermediates in the synthesis of c-hydroxycarboxylic acids from ketones and aldehydes. The nitrile functional group can be hydrolyzed by aqueous acid to yield a carboxylic acid. Nitriles can also be hydrolyzed to carboxylic acids using aqueous base. Unfortunately, when a cyanohydrin is treated with aqueous base the original carbonyl compound is isolated OH CHCOOH HO CN OBU H HCEN H NAOH H20...
Which one change would be most likely to decrease the deltaG of an enzyme-catalyzed reaction, according...
Which one change would be most likely to decrease the deltaG of an enzyme-catalyzed reaction, according to our coverage? Use a version of the enzyme with a lower Kcat. Use a version of the enzyme with a lower Km. Find a way to remove product of the reaction (eg, by consuming that product in another reaction) Add a noncompetitive inhibitor. Double the enzyme concentration QUESTION 14 Think about an 800-amino acid polypeptide. In the middle (let's say amino acids 401-402)...
Question 1 (0.5 points) Saved Proteins are formed by joining together. carboxylic acids fatty acids amino...
Question 1 (0.5 points) Saved Proteins are formed by joining together. carboxylic acids fatty acids amino acids none of the above Question 2 (0.5 points) Which two functional groups does an amino acid contain? amine and carboxylic acid carboxylic acid and amide amide and heterocyclic ring heterocyclic ring and amine Question 3 (0.5 points) Do amino acids commonly exist in nature as neutral molecules with all uncharged atoms? Yes No Question 1 (0.5 points) What is a protein? A polymer...
ОН 3. Glucuronic acid is an oxidized derivative of glucose found in animal secretions such as...
ОН 3. Glucuronic acid is an oxidized derivative of glucose found in animal secretions such as saliva. Biological conversaion of glucuronic acid into its isomer, fructuronic acid, is catalyzed by an enzyme called uronic acid isomerase O OH OH o= H2O, H* OH uronic acid isomerase HO O O H OH glucuronic acid fructuronic acid a. Provide a complete curved-arrow mechanism for this transformation. You may assume that the enzyme active site will supply all necessary equivalents of water and...
2. The reaction below is catalyzed by the CK enzyme: NH2 OP H2N H₂N N Ń cooK COO - INN CO + ATP + ADP Below is a picture of the active site for this enzyme. The red atoms are the amino acids in the CK protein. The blue structure is the substrate, the orange is the phosphate end of ATP. All dashed lines are showing interactions and the curved arrows are showing the mechanism. The wavy lines indicate that...
The lysozyme reaction is shown below:
1.
The lysozyme reaction is a bimolecular enzyme-catalyzed reaction.
The two substrates are the NAG-NAM polymer and a water molecule.
What bimolecular kinetic model will lysozyme follow? Justify your
answer.
2. Typically, we would confirm the bimolecular model with a set
of kinetic experiments and the resulting Lineweaver-Burk plots.
Explain why it would be experimentally difficult to use this
strategy for lysozyme.
Glu-35 Glu-35 H00 HO НО Lo—NAG HO— HO-NAG + H20_ NAG. NAG...
Carboxylic Acids and their Derivatives.
1. For the reaction below, give a detailed mechanism for both an acid-catalyzed and base-catalyzed reaction. (2pts) + CH OH IN Acid Catalyzed Mechanism: Base-Catalyzed Mechanism: 2. How would you carry out the following syntheses. (4pts) CN
2. The reaction below is catalyzed by the CK enzyme: NH O | NHA | СК O= H₂N Ņ coo eo T N con + ATP + ADP Below is a picture of the active site for this enzyme. The red atoms are the amino acids in the CK protein. The blue structure is the substrate, the orange is the phosphate end of ATP. All dashed lines are showing interactions and the curved arrows are showing the mechanism. The wavy...
The role of an enzyme in an enzyme-catalyzed reaction is to: Select one: a. make the free-energy change for the reaction more favorable. b. ensure that the product is more stable than the substrate. c. ensure that all the substrate is converted to product. d. increase the rate at which substrate is converted into product. e. do none of the above. The focus of the online practical lesson was the enzyme chymotrypsin. The catalytic mechanism by which chymotrypsin reactions occur:...
Can
you check my answers please?
To answer the questions below use the following information: Cyanohydrins are important intermediates in the synthesis of c-hydroxycarboxylic acids from ketones and aldehydes. The nitrile functional group can be hydrolyzed by aqueous acid to yield a carboxylic acid. Nitriles can also be hydrolyzed to carboxylic acids using aqueous base. Unfortunately, when a cyanohydrin is treated with aqueous base the original carbonyl compound is isolated OH CHCOOH HO CN OBU H HCEN H NAOH H20...
Which one change would be most likely to decrease the deltaG of an enzyme-catalyzed reaction, according to our coverage? Use a version of the enzyme with a lower Kcat. Use a version of the enzyme with a lower Km. Find a way to remove product of the reaction (eg, by consuming that product in another reaction) Add a noncompetitive inhibitor. Double the enzyme concentration QUESTION 14 Think about an 800-amino acid polypeptide. In the middle (let's say amino acids 401-402)...
Question 1 (0.5 points) Saved Proteins are formed by joining together. carboxylic acids fatty acids amino acids none of the above Question 2 (0.5 points) Which two functional groups does an amino acid contain? amine and carboxylic acid carboxylic acid and amide amide and heterocyclic ring heterocyclic ring and amine Question 3 (0.5 points) Do amino acids commonly exist in nature as neutral molecules with all uncharged atoms? Yes No Question 1 (0.5 points) What is a protein? A polymer...
ОН 3. Glucuronic acid is an oxidized derivative of glucose found in animal secretions such as saliva. Biological conversaion of glucuronic acid into its isomer, fructuronic acid, is catalyzed by an enzyme called uronic acid isomerase O OH OH o= H2O, H* OH uronic acid isomerase HO O O H OH glucuronic acid fructuronic acid a. Provide a complete curved-arrow mechanism for this transformation. You may assume that the enzyme active site will supply all necessary equivalents of water and...
Most questions answered within 3 hours.
-
Graph the mean winning margins for years 2005 - 2007 for women's
NCAA Basketball tournaments. Is...
asked 4 minutes ago -
The equilibrium constant, K, of a certain first order reaction
was measured at two temperatures, T....
asked 3 minutes ago -
Management by walking around (MBWA) refers to
a. the process used by new executives to get...
asked 16 minutes ago -
consider the molecule H2CO using valence bond theory describe
the location of the carbon electrons. the...
asked 18 minutes ago -
Apply the simple GCD algorithm for:
1. a = 112, y = 32
2. a =...
asked 16 minutes ago -
A test of hypotheses for one proportion has the following Null
Hypothesis: pi = 0.33, and...
asked 20 minutes ago -
In regression analysis: a. the independent variable must be
categorical in nature. b. the variables being...
asked 48 minutes ago -
You want to rent an unfurnished one-bedroom apartment in Boston
next year. The mean monthly rent...
asked 48 minutes ago -
How many moles of carbon dioxide gas will occupy a volume of
6.25 L at 4.2atm...
asked 43 minutes ago -
What is the speed of sound, in FT/S, if the air temperature
is,
A: 0.0C
B:...
asked 28 minutes ago -
explain why a polar protic solvent speeds the rate of an SN1
mechanism
asked 30 minutes ago -
Part A)The reversible chemical reaction . A+B⇌C+D has the
following equilibrium constant: Kc=[C][D][A][B]=2.6
Initially, only A...
asked 33 minutes ago