9) How do you expect the cysteine thiol will be affected by hydrogen bonding to the...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
9) How do you expect the cysteine thiol will be affected by hydrogen bonding to the side chain of a glutamic acid in the dipeptide structure shown? A) It will decrease the pka of the thiol B) It will increase the negative charge surrounding the sulfur atom C) It will increase the Ka of the thiol D) It will make the thiol more reactive as a nucleophile E) All of the above 10) Which of the following effects can be correlated with the observation that the side chain of aspartate is a stronger acid than the side chain of glutamate? NH, A) Inductive effect B) Effect of Coulombic Repulsion C) Effect of Coulombic Attraction D) Effect of Dipolar interaction E) None of the Above NH, pk = 3.7 O. pK = 4.3 11) In peptide and protein structure, pairs of cysteines can react to form cystine as shown in the dipeptide (N-Cys-Cys-C) below. What type of reaction is this and do you expect and what will be needed to drive this reaction forward? A) This is a reduction reaction and an electron acceptor will be needed B) This is an reduction reaction and a proton donor will be needed C) This is an oxidation reaction and an electron donor will be needed D) This is an oxidation reaction and a proton donor will be needed E) Both A and B A chain Bchain 0= SH SH 12) The A and B chains of the peptide hormone insulin are shown to the right. How could you chemically treat this molecule to cleave the covalent disulfide bonds holding the A and B chains together? A) Add an excess of cysteine B) Add an excess of cystine C) Add an excess of hydrogen peroxide D) Add an excess of hydrogen peroxide and cystine E) None of the above 9) How do you expect the cysteine thiol will be affected by hydrogen bonding to the side chain of a glutamic acid in the dipeptide structure shown? A) It will decrease the pka of the thiol B) It will increase the negative charge surrounding the sulfur atom C) It will increase the Ka of the thiol D) It will make the thiol more reactive as a nucleophile E) All of the above 10) Which of the following effects can be correlated with the observation that the side chain of aspartate is a stronger acid than the side chain of glutamate? NH, A) Inductive effect B) Effect of Coulombic Repulsion C) Effect of Coulombic Attraction D) Effect of Dipolar interaction E) None of the Above NH, pk = 3.7 O. pK = 4.3 11) In peptide and protein structure, pairs of cysteines can react to form cystine as shown in the dipeptide (N-Cys-Cys-C) below. What type of reaction is this and do you expect and what will be needed to drive this reaction forward? A) This is a reduction reaction and an electron acceptor will be needed B) This is an reduction reaction and a proton donor will be needed C) This is an oxidation reaction and an electron donor will be needed D) This is an oxidation reaction and a proton donor will be needed E) Both A and B A chain Bchain 0= SH SH 12) The A and B chains of the peptide hormone insulin are shown to the right. How could you chemically treat this molecule to cleave the covalent disulfide bonds holding the A and B chains together? A) Add an excess of cysteine B) Add an excess of cystine C) Add an excess of hydrogen peroxide D) Add an excess of hydrogen peroxide and cystine E) None of the above
Expert Answer:
Related Book For
Introduction to Finance Markets Investments and Financial Management
ISBN: 978-1118492673
15th edition
Authors: Melicher Ronald, Norton Edgar
Posted Date:
Students also viewed these chemistry questions
-
A2. Imagine that the following events occurred in the period between 2004 and 2008. EU adopted new trade restrictions (such as higher tariffs) on Chinese products and reduced the annual rate of...
-
How do you expect the capital structures of two firms to differ if one is involved in steel production and the other does designs software to solve business problems?
-
How do you expect the specific rotations of the (2R,3R) and (2S,3S) forms of 2-bromo-3-chlorobutane to be related? Answer the same question for the (2R,3R) and (2S,3R) forms.
-
All of the following are advantages of licensing EXCEPT: the foreign country gains employment by having the product manufactured locally. the licensee gains information that allows it to start with a...
-
Saturated steam is generated in a boiler by converting a saturated liquid to a saturated vapor at 200 psia. This is done by transferring heat from the combustion gases, which are at 5008F, to the...
-
In 100 words or fewer, explain why we use a predetermined overhead rate instead of waiting to use the real rate. In your answer, explain how the rate works with the Manufacturing overhead account.
-
A filament-wound composite drive shaft for a helicopter transmits a torque \(T\) that generates shear loading of the shaft material, as shown in Figure 7.71. The shaft is to be designed as a hollow...
-
Assume that Dover Hospital performs the following activities in providing outpatient service: a. Verifying patients insurance coverage b. Scheduling patients arrival date and time c. Scheduling staff...
-
The user will give you n arrays of size m (all arrays have the same size). You will create a function to calculate the Euclidean distance for each of the n arrays. Then, in another function whose...
-
Erica and Bob participate in a friendly Hackathon that allows each to solve one question a day out of the three offered. There will be one easy, one medium and one hard question, with points awarded...
-
Calcium carbonate reacts with aqueous HCl to give CaCl 2 and CO 2 according to the reaction. CaCO 3(s) + 2HCl (aq) ? CaCl 2(aq) + CO 2(g) + H 2 O (l) What mass of CaCO 3 is required to react...
-
State University asks students to file an application to graduate one term before they actually plan to graduate. The application lists the courses the student has already had and those they will...
-
Youre the director of the citys Division of Water. Your mail today contains this letter: The salesperson was wrong. You dont provide discounts for pools (or anything else). At current rates, filling...
-
As the licensing program coordinator for your school, you evaluate proposals from vendors who want to make or sell merchandise with the schools name, logo, or mascot. If you find the product...
-
Your boss has been pressuring you because you are weeks late turning in a termination report. However, you cannot begin your section of the report until your colleague, Matt Churetta, finishes his...
-
Your co-worker is concerned about the new computer software that IT just installed on everyones office computers. He is not very familiar with the new program and has been struggling to figure it...
-
Duval Company issues four-year bonds with a $100,000 par value on January 1, 2021, at a price of $95,952. The annual contract rate is 7%, and interest is paid semiannually on June 30 and December 31....
-
ABC company leased new advanced computer equipment to STU Ltd on 1 January 2019.STULtd has to pay annual rental of $290,000 starting at 1 January 2019. It is a four years lease with ultimate rental...
-
Describe what is meant by ethical behavior.
-
Classify each of the following as a sunk cost, an opportunity cost, or neither. a. The firm has spent $1 million thus far to develop the next-generation robotic arm; it is now examining whether the...
-
What is meant by the Capital Asset Pricing Model? Describe how it relates to expected return and risk.
-
Dunkirk Consulting wishes to predict the amount of overhead expense that will be incurred by a consulting contract, to develop more accurate bids for future con- tracts. Dunkirk has the following...
-
Block Commodities has gathered the following information concerning rock salt deliveries to its clients, which it believes are highly seasonal: a. Suppose Block Commodities calculated a set of...
-
The service center at a large automobile dealership is trying to boost revenue by pro- viding no-appointment-necessary oil changes to any type of vehicle that stops by the service center. To quickly...
Study smarter with the SolutionInn App