In which direction will a lactoglobulin (pI 5.2) at pH 5.0 and at pH 7.0 move in an electric field [toward the anode, toward the cathode, or will remain stationary]? Explain your reasons.

Q: At pH 7.0, in what order would the following three peptides (described by their amino acid…

A: Cation exchange chromatography uses the column with negatively charged ion exchange resin that has…

Q: running the reaction at 83 °C cooling the reaction to 11 °C changing the pH to 5.4 Increase reaction…

A: The rate of an enzyme catalyzed reaction depends on various factors like temperature and pH of the…

Q: Consider the following tripeptide:Gly—Ala—Vala. What is the approximate isoelectric point?b. In…

A: Given sequence of peptide, Gly-Ala-Val Gly- Glycine Ala- Alanine Val - Valine At extreme low pH a…

Q: Compute the pI value of tyrosine. If the gel in an electrophoresis experiment is at pH 7, in which…

A: Step 1 Gel electrophoresis (Tiselius,1937) is a technique of separating biomolecules under an…

Q: One or more of the compounds shown below will satisfy each of the following statements. Not all…

A: A carbohydrate is a biomolecule consisting of carbon, hydrogen, and oxygen atoms, usually with a…

Q: Asp residue (both of which are essential for catalysis) with pK, values of 5.9 and 4.5,…

A: In simple terms, pH indicates whether a substance is acid or base. pKa determine how strong is an…

Q: Use the pka values, calculate the isoelectric point (pl) of the following amino acids. a) Leucine b)…

A:

Q: The following amino acid is dissolved in solution at pH 7.4. HC H + CH CH₂ H H+ HC a. Which amino…

A: Dissociation of a weak acid is mathematically described by the Henderson-Hasselbalch equation:pH =…

Q: The amino acid arginine ionizes according to the following scheme:                  (a) Calculate…

A: Arginine is an alpha amino acid which contains alpha amino group, an alpha carboxyl group, side…

Q: The amino acid tyrosine contains a phenolic R-group and has pKa values of 2.2, 9.0, and 10.2. A…

A: tyrosine or L-tyrosine is one of the 20 standard amino acids that are used by cells to synthesize…

Q: Electrophoresis is the movement of molecules within a matrix (paper, gel) to which an electric field…

A: Amino acids are molecules composed of an alpha carbon bonded to to 4 valencies. They are;…

Q: Draw the structure of predominant ionic species and also predict the net charge for Following…

A: This peptide is composed of three amino acids. The amino acids present in the tripeptide are…

Q: What is the optimum pH to separate a mixture of lysine, arginine, and cysteine using…

A: Amino acid is a organic molecule made up of amino group (NH2 - basic), carboxyl group (COOH -…

Q: write the one letter code for oligopeptide ser-cys-ille-glu-Asn-cys-glu and calculate the total…

A: Before calculating the total charge on the peptide, we need to be thorough with the principle behind…

Q: What is the molecular weight of a linear polysaccharide consisting of 7 galactose monomers and 1…

A: Glucose and galactose are monosaccharides that are also referred to as simple sugars. They represent…

Q: At pH = 7.0 the degree of %3D protonation of histidine side chain (pKa = 6.5) will be. %3D

A: Amino acids are organic compounds with two functional group namely carboxyl and amino. At low pH an…

Q: 2. Peter does not tolerate lactose in milk. He bought a solution of ẞ-galactosidase where [Eo]=10.0…

A: To determine the initial rate of reaction  (Vo)                   Vo = Vmax [C]KM +[C]…

Q: A) Identify the structures that would be found in proteins B) identify the structures that…

A: Introduction  Large biomolecules and macromolecules known as proteins are made up of one or more…

Q: An oligopeptide has the following amino acid sequence:…

A: Amino acids are the monomeric unit to form polypeptides. There are 20 different amino acids that…

Q: The pH vs charge graph for a triprotic amino acid is shown below. Please answer the following…

A: An amino acid with the ability to donate 3 protons (3 H+) is called a triprotic amino acid. The 3…

Q: The unfolding of the α helix of a polypeptide to a randomly coiled conformation is accompanied by a…

A: The alpha helix is a common motif in the secondary structure of proteins and is a right hand-helix…

Q: You have an initial solution in which you added quantities of “A” and “B” such that there is 4.5 M…

A: Since conditions inside the cell are different than standard temperature and pressure, biochemists…

Q: It is well known that sphingomyelin interacts with cholesterol and high affinity. What do you…

A: Cholesterol interacts with glycosphingolipids in the plasma membrane to form freely floating…

Q: Please select the answer that would complete the following statement corretly. The charge of acetic…

A: The charge on the acetic acid (CH₃COOH) is due to the carboxylic acid functional group. It is a weak…

Q: A research group discovers a new version of happyase, which they call happyase*, that catalyzes the…

A: Enzyme catalyzed reactions can be characterized using the Michaelis-Menten equation. The initial…

Q: Polymer beads (resin) made of DEAE (diethylaminoethyl) cellulose are packed in an ion exchange…

A: DEAE cellulose resin had some  groups which are positively charged and can bind proteins through…

Q: When a mixture of 3-phosphoglycerate and 2-phosphoglycerate is incubated at 25°C in the presence of…

A: Phosphoglycerate mutase or PGM is the enzyme that facilitates the reaction step 8 during glycolysis…

Q: You are given 0.5 M solution of the amino acid Arginine. pK1 (α-carboxyl group) = 2.17 pK2 (α- amino…

A: In biochemistry, pH can be referred as the decimal logarithmic value of the reciprocal of H+…

Q: Consider the reaction for assembly of a tetrapeptide from four amino acids: Serine + Proline +…

A: Free energy diagram of a reaction has Free energy (G) in Y-axis and Reaction coordinate (timely…

Q: Consider the tripeptide Glu-Asp-Phe. What is the approximate isoelectric of this molecule? In which…

A: This tripeptide composed of Glutamate, aspartate and phenylalanine residues. Glutamate and aspartate…

Q: estimate of 8.78 for the microscopic ionization constant pKp. Given this information, what is the…

A: Given, pK1 = 7.57 pK2 = 9.30 pKD = 8.78 pK1 = -log(K1)K1 = 10-PK1K1 = 10-7.57       = 2.69×10-8 pK2…

Q: make a Gibbs free energy graph as free energy as y-axis a for the transition state as a function of…

A: Please select polynomial and choose generate equation for choosing the best fit of the graph, it can…

Metabolic pathways

Metabolism is defined as the group of life-supporting, enzyme-mediated chemical reactions in organisms. A metabolic pathway is a set of these chemical reactions that involve anabolism (synthesis of complex biomolecules) and catabolism (breakdown of biomolecules into small molecules) that occur inside a cell. Metabolites are the reacting substances, products, and intermediate substances of an enzymatic process that are altered by a series of chemical events catalyzed by enzymes.