HOCH, OH OH OH OH

Q: the amino acid histidine has three ionizable groups with pKa values of 1.8, 6.0, and 9.2. In a…

A: Using Henderson Hasslebach equation, pH=pKa+log [his] \[hisH+] 5.4=1.8+log[his] \[his H+]…

Q: Draw the most protonated structure for the tripeptide ILY.

A: Tripeptide is a peptide chain containing three amino acids. A tripeptide will have two peptide…

Q: pH 1.0; Predict which structure of glycine might be dominant at pH 7.0 and pH 12.0. The pKa value of…

A: Amino acids are organic compound having functional group namely carboxyl and amino group. At extreme…

Q: Using your best guess, what percentage of the protein is alpha helices? What about beta sheets?…

A: The branched-chain α-ketoacid dehydrogenase complex (BCKDC or BCKDH complex) is a multi-subunit…

Q: In the deoxy state, Histidine forms an ______ salt bridge with aspartate and an  ______ salt bridge…

A: A salt bridge is a non-covalent interaction between hydrogen bonding and ionic bonding. A salt…

Q: Calculate the charge and draw the structure of the predominant ion for: (i) Lysine at pH 7.0…

A: The amino acids are the monomer unit of the peptide chain, which exhibits different charges at…

Q: Which of the following is found in the coenzyme FAD?(a) Two heterocyclic rings (b) ADP(c) A…

A: FAD (Flavin adenine dinucleotide) is an oxidizing agent in catabolic reactions. It is reduced to two…

Q: In the following reaction the product(s) would be: CH3CH₂COOH + CH3OH → O a) an aldehyde and water…

A: Here we can see there are two alcohols reacting together. This is a kind of dehydration reaction.

Q: Which of the following reactions takes place by dehydration synthesis? Which of them takes place by…

A: Some polymerization reactions are accompanied with the loss of water molecules at each step. Such…

Q: Why does fresh pineapple, fresh papaya, cooked papaya and meat tenderizer liqiefy the surface of a…

A: Gelatin is made from collagen, which is a structural protein found in all animals.

Q: If a protein has bound 7 acidic protons at pH 6.4 and it is known to be at its isoelectric point at…

A: The pH at which a protein carries no net charge (is neutral), is known as the isoelectric point (pI)…

Q: Which type of bonds links the monomers that make up cellulose microfibrils Select one: O a. lonic…

A: Cellulose is a molecule, consisting of hundreds – and sometimes even thousands – of carbon,…

Q: Observe this structure, use the pK, table, and choose the CORRECT statement. H2N-CH-C-OH CH2 OH O…

A: Proteins are built up of amino acids, which are made up of carbon, nitrogen, oxygen, and hydrogen,…

Q: For its stationary phase, a chromatographic column makes use of beads that carry a net negative…

A: Chromatography is a technique used for the separation of a mixture between mobile phase, which…

Q: Classify the following amino acids as nonpolar, polar basic, polar acidic, or polar neutral. (a) (b)…

A: Amino acids are the molecules that contain both amino and carboxylic acid groups. In living systems,…

Q: a) Which pH (1, 7 or 10) would produce the following ionization states for lysine?Th pK of the…

A: The pKa of the ionizable groups of amino acids determine the net charge on the amino acid at a…

Q: A polyunsaturated, w-9 fatty acid has 20 carbons. It has three sites of unsaturation and the double…

A: Fatty acids are biomolecules with a large hydrocarbon chain and a carboxyl group at the end. Fatty…

Q: a) What type of pentose sugar does this nucleotide have? b) Would this nucleotide be found in RNA or…

A: There are two types of nucleic acids DNA and RNA. DNA contains deoxyribose sugar as a pentose sugar…

Q: Given the active site diagram below, please identify the residue participating in a charge-charge…

A: Note- we are supposed to answer one question according to our guidelines. Please repost the other…

Q: You are given 0.7 M solution of the amino acid Lysine. pK1 (α-carboxyl group) = 2.18 pK2 (α- amino…

A: Introduction Amino acids are the building blocks of proteins. The building blocks of life are amino…

Q: Glycerolphospholipid head groups include coline, ethanolamine, glycerol and serine. Which of these…

A: Lipids are macromolecules comprised of hydrogen, oxygen, and carbon just like carbohydrates but in…

Q: Formulate a dipeptide (draw its structure) from the amino acids serine (ser) and alanine (ala) and…

A: A peptide bond is a bond that links two amino acids. A peptide bond is the amide linkage formed due…

Q: Fill in the blank: Identify the type of non-covalent/covalent interactions present in the following…

A: The Ramachandran plot also termed as Rama plot is the way to visualize the position of backbone…

Q: Which of the following statements incorrectly describes the structure of an adenosine triphosphate…

A: ATP is the molecule of energy in the cell. It function is - provide energy and helps in storage.

Q: One of the following is false: a. Glycosylated HbA has glucose attached to N- terminal of beta…

A: HbA, also termed as adult hemoglobin, is the common hemoglobin tetramer found in humans. This…

Q: The following are structural diagrams of a selection of newly discovered amino acids. OH HO C-OH CH3…

A: The α-Amino acids are molecules made of a central C-atom (the C alpha  carbon atom), that is bonded…

Q: The amino acid residue sequence of the hemoglobin beta subunit polypeptide would represent what type…

A: Hemoglobin, the protein present in the red blood cells is responsible for the transport of gases…

Q: Glucose is a polar molecule. Would you predict that the amino acids of the enzyme hexokinase in the…

A: hexokinase catalyzes the transfer of the phosporyl group. The enzyme undergoes induced-fit…

Q: The molecular formula for glucose is C6H12O6. What wouldbe the molecular formula for a polymer made…

A: Monosaccharides join together to form a long chain compound called disaccharide, oligosaccharide or…

Q: The enzyme thermolysin cleaves peptide bonds on the C-terminal side of the amino acids lle. Tyr,…

A: Amino acids are monomeric units that form a peptide chain. The amino acids are linked together by a…

Q: Fructose and caproic acid are both molecules that contain a 6 carbon backbone. The melting point of…

A: Fructose is a ketonic simple sugar found in many plants, mostly in the fruits born by the pants and…

Q: draw the primary structure of the polypeptide at physiological pH range of 7.35-7.45 and put each…

A: The polypeptide of a protein is composed of different amino acids that are joined together through…

Q: Structures of L-Cysteine from highly protonated to depronated form. Note Structure A as the most…

A: Proteins are unbranched polymers constructed from 20 standard α-amino acids. They have four levels…

Q: The diprotic amino acid alanine is shown below as it would appear in a vacuum. The pKa of the alpha…

A:

Q: Which of the following amino acids can interact via ionic/electrostatic interactions with lysine at…

A: The amino acids contain different side chains or functional group (R group) that may be uncharged or…

Q: Which lettered subunit is the nonreducing end? CHOH CHOH A CHOH CHOH -CH2 CHOH CH OH `CH он 3 CHOH…

A: Non reducing end of a polysaccharide can be defined as the end that do not possess any acetal or…

Q: Draw a single condensation reaction occurring between two amino acids (choose any two). Clearly…

A: A condensation reaction is a type of reaction where two molecules combine with each other forming a…

Q: In the chemical mechanism of chymotrypsin, the group that acts as a general base in the deacylation…

A: Hi! Thanks for your question. As you have posted multiple questions and have not mentioned which one…

Q: Our body is compost of about 70% water which means that majority of the chemical processes happens…

A: The amino acids are classified based on the polarity as, Polar amino acids (hydrophilic)- These are…

Q: Draw the formula of each of the following: a. Aspartic acid-histidine-tryptophan b.…

A: Hi! Thanks for your question. As you have posted multiple questions we are answering only the first…

Q: What types of interactions are possible between the side chains of the polypeptide shown below?…

A: Proteins are the polymers of amino acid connected to each other by covalent peptide bond.

Q: For the chemical reaction that results in the formation of a peptide bond between two amino acids,…

A: The peptide bond is formed when the two amino acids are joined together with the release of water…

Q: What structure deactivates the enzyme that catalyses the following reaction? de de do Per O The…

A: G protein-coupled receptors can be grouped into three main categories namely the Gq, the Gs, and the…

Q: After the peptide chain of collagen has been formed, many of the proline residues are hydroxylated…

A: Collagen is the most abundant form of protein found in the human body. It is found in the muscles,…

Q: Denaturation is the loss of protein function from structuralchange or chemical reaction. At what…

A: Proteins have different levels of organization, which, when combined, give the functional protein.…

Q: At pH 7, tryptophan crosses a lipid bilayer at about onethousandththe rate of indole, a closely…

A: Structure of tryptophan: Tryptophan is an aromatic amino acid. It has indole ring.

Q: What is the ratio of [A-]/[HA] in a solution with pH = 11.5? NH3 sh NH₂ sh + H+

A: Lysine is a basic amino acid with an amino group in its side chain. The pKa value of the lysine side…

Q: The amino acid T has pKaa-amino = 10.43 and a pKaa-COOH = 2.63. What is the ratio of the conjugate…

A: Given Values: pKa of the amino group = 10.43 pKa of the carboxylic group = 2.63 pH of the solution =…

Q: X in sphingolipids can be which molecules?

A: Sphingolipids: It is a class of lipids that is made up of aliphatic amino alcohol sphingosine. some…

Q: Given the free amino acid Asparagine, at which pH would you expect to have equal numbers of positive…

A: There are twenty standard amino acids present in all living organisms. All amino acids contain at…

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.