+180 120 60 -60 -120 -180 -180 -120 -60 (o = 90°, =-90°) Disfavored 60 120 +180 FIGURE 2.23 A Ramachandran plot showing the values of o and w. Not all o and values are possible without collisions between atoms. The most favorable regions are shown in dark green; borderline regions are shown in light green. The structure on the right is disfavored because of steric clashes.

Q: Morphine should be extracted from a urine sample using solid extraction (SPE). Suggest a suitable…

A: To suggest a suitable SPE column that can be used for the extraction of morphine.

Q: In DNA, thymine, is paired with ? [thymine, adenine, cytosine, guanine, uracil]. The nitrogenous…

A: In DNA, thymine, is paired with The nitrogenous base not found in RNA is

Q: What is the ratio of CATION to ANION in Drug X? [blank1] Drug X CHÍNH H₂C ON-H 'N CH3 CH₂ SO4² 2

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Draw a structural formula for the major ionic form of the amino acid shown below when in aqueous…

A:

Q: Draw a structural formula for the major ionic form of the amino acid shown below when in aqueous…

A:

Q: The condensed structure o a urea molecule is shown below.  Can you help me with part B. What is the…

A: We have to determine ABE classification of C and N in urea

Q: All amino acids have two ionizable functional groups: an a-amino group (average pK, of 9.4) and an…

A:

Q: The amino acid cysteine typically gives two spots in TLC. Explain why this is so.

A: As amino acids are colourless ,to see the spots in chromatogram we apply a solution of ninhydrin to…

Q: There are twenty amino acid that we will encounter in the unit about proteins. Let us see some…

A: Amino acids are biomolecules having both amino and carboxylic groups in one molecule. If both…

Q: Phenylalanine O Proline Isoleucine O Lysine O Serine O Glycine O Asparagine Methionine Glutamic acid

A:

Q: In the box below draw the tetrahedral representation of the R enantiomer of the amino acid cysteine,…

A: R enantiomer of cysteine is

Q: Order the following types of bonding from strongest (=1) to weakest (=5) in a typical biochemical…

A: Rank the various types of bonds in a biochemical system:

Q: The figure below is a cartoon presentation of a large biomolecule called a eptide, made up of…

A: Various types of interactions are possible in chemistry. These interactions help in the stability of…

Q: In an a helix, how does bonding occur between the amino acids in the polypeptide chain? Match the…

A: Hydrogen bonding occurs between hydrogen and an electronegative element like O, N or F. The…

Q: A certain lipid has the structure shown below (R1 and R2 are fatty acyl chains). Could a sample of…

A: Lipid are the molecules that contain hydrocarbons and which are the building blocks of the structure…

Q: Which of the following contributes the most to the stability of the conformation of a water-soluble,…

A: The most important contribution to the stability of a protein conformation is the entropy increase…

Q: e box below draw the tetrahedral representation of the S enantiomer of the amino acid valine,…

A:

Q: Draw the chemical structure of a polypeptide whose primary structure is Serine-Asparagine-Valine.…

A: Polypeptides are polyamides formed by the condensation of amino acids.

Q: 1. Explain why the ¹H-¹H two dimensional COSY experiment cannot connect hydrogens between adjacent…

A: The objective of this question is to explain the  two-dimensional COZY experiment 1H-1H unable…

Q: draw the dipeptides of Thr-Ala and circle the peptide linkage

A: We have to draw the dipeptides of Thr-Ala and circle the peptide linkage

Q: Omplete the electron-dot structure of phenylalanine, showing all lone-pair electrons. • Include all…

A:

Q: How do amino acids bond together ? Use a basic diagram of an amino acid molecule ato show how 2…

A: We have to show bonding of amino acids ,type of reaction, and type of bond Formed.

Q: What two amino acids are in this picture? methionine and what else

A: Given, Based on the given structure of amino acid, the name of the amino acid is:

Q: 2. Compare and contrast the biological roles of the following amino acids the following pairs of…

A: The objective of the question is to compare and contrast the biological roles of three pairs of…

Q: Q1. The pK, values of Glutamic acid are 2.2, 4.3 and 9.7. H2N но. ... OH (a) Calculate the pH of a…

A: The question is based on the concept of biomolecules. We have to determine the pH at which 80% of…

Q: In the box below draw the tetrahedral representation of the R enantiomer of the amino acid valine,…

A: Valine is amino acid,  consisting of one chiral center.   - Carbon to which both the amino and…

Q: Select the single best answer. Watson and Crick determined that the DNA molecule has two helical…

A: (DNA) Deoxyribonucleic acid us a double helical strand.

Q: Write the name of linkage joining two amino acids.

A: Given Write the name of linkage joining two amino acids

Q: (Q25) A buffer solution is prepared by adding 0.797 moles of formic acid and 0.866 moles of sodium…

A: ★ Answer : pH of the solution will be 4.027  ★ Solution :

Q: A solution contains alanine and serine. What are the possible dipeptide products that can form from…

A:

Q: 1) Discuss how polymerization changes the properties of any ensemble of amino acids so that a…

A: Proteins may be defined as compounds of high molar mass consisting largely or entirely of chains of…

Q: There are four amino acids shown in this problem: two are on this page, and two are on the following…

A: We are given 4 different amino acids in 3D diagram through ball and stick model. In ball and stick…

Q: What is the active form (structure) of cis-platin

A: What is the active form (structure) of              cis -platin ?

Q: a. For the compound below show how its carbon skeleton can be divided into isoprene units b.Put a…

A: A question based on introduction to organic chemistry. 3-D Structure of an organic compound is given…

Q: If 4.27g of sucrose, C12H22O11 are dissolved in 15.2 g of water, what will be the boiling point of…

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Q: 13) A particle is orbiting about a central location with an orbit radius of 0.69 nm. The m = 2 state…

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Q: c

A: Given information, 3 amino acids joined together by two peptide bonds. An amino acid that can form…

Q: (Q25) A buffer solution is prepared by adding 0.780 moles of formic acid and 0.760 moles of sodium…

A: Buffer solution: A buffer solutions is an aqueous solution consisting of a mixture of a weak acid…

Q: . Polyglycine, a simple polypeptide, can form a helix with 6 = -80°, ự = +150°. From the…

A: In Ramchandran Plot (φ) represent Phi (ψ) represent psi - Dihydral angle  - dihydral angle is the…

Q: Aspartic Acid CI

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Q: What are the three dimensional structures of (R) - 2-aminopentane and (S) - 2-aminopropanoic acid…

A: In most of the carbon compound, carbon is sp3 hybridised. The sp3 carbon atom is a non plannar atom…

Q: (Q1) What do you understand by the term selectivity, activity and stability in catalytic processes?

A: Catalysis is a phenomenon by which a substance changes the rate of a reaction. Catalyst affects the…

Q: (a) The optical rotation [a] of aqueous samples of pure a-D-glucose D and pure ß-D-glucose were…

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Q: Most of the ultraviolet absorption of proteins at 280 nm is due to their content of a. Glutamate b.…

A:

Spectroanalytical Methods

Spectroanalytical methods measure the wavelength and intensity of radiations that are either emitted or absorbed by a molecular or atomic species. These methods are useful for evaluating the electronic or atomic arrangement of the molecules of a given analyte.