Why is B-D-Glucopyranose in a chair conformation form is the most stable form of glucose present in our body?
Q: Which of the following a.B-D-ribose b. thymine c. phosphate which is not a component of…
A: Deoxyribonucleotide means DNA. DNA acts as genetic material in most of the organisms present on the…
Q: What is the particular about the amino alcohol used in the synthesis of sphingomyelin?
A: Phospholipids: Phospholipids are compound lipids and it is of two types. These include…
Q: What is GABA (gamma-aminobutyric acid)?
A: The nerve impulse is an electrical signal that travels along the neuron. The charged particles…
Q: The phosphorylated 5-carbon monosaccharide required for nucleotide synthesis is: ,a. Ribulose 1,…
A: Nucleotide synthesis takes place in the cytosol of the liver. The first committed step for…
Q: When the “head and tail” structural model is applied to a glycerophospholipid, the two tails are
A: There are four types of biomolecules present in a cell, performing various functions. These are…
Q: is the structure glycerophospolipid or sphingophospolipid?
A: ANS: The sphingolipid are complex lipid that contains an amino group attached with alcohol,…
Q: What is the biochemical rationale for the isomerization of glucose 6- phosphate to fructose…
A: Glycolysis is a metabolic pathway in every cell. In this process glucose is broken down into 2…
Q: A mature glycogen particle typically has 12 tiers of branches with 2 branches per tier and 13…
A: Glycogen is defined as a polysaccharide of glucose, which is multibranched and thus, is a source of…
Q: A tripeptide has the following sequence: Glu-Trp-Arg What is the net charge of this tripeptide…
A: The given peptide is composed of three amino acids. Peptide composed of three amino acids is called…
Q: What is dimethylallyl pyrophosphate (DMPP)?
A: DMPP is an isoprenoid precursor.
Q: A mature glycogen particle extends out from the homodimer, glycogenin, typically having 12 tiers of…
A: Glycogenin is an enzyme which catalyze the formation of glycogen from glucose. It is known that…
Q: An enzyme that catalyzes disulfide– sulfhydryl exchange reactions, called protein disulfide…
A: Protein disulfide isomerase or PDI is an enzyme that breaks sulfide bonds and is found in the…
Q: Draw the tetrapeptide Met-Ile-Lys-Glu at a ph of 12?
A: The pKa values of amino acid side chains play an important role in determining the pH-dependent…
Q: Why "cellulose is composed of a long, branced chain of B-glucose subunits" is false?
A: Introduction Polysaccharides, also known as polycarbohydrates, are the most common type of…
Q: It is important to note that galactose is an important component of glyco- proteins. What is the…
A: Galactose is a hexose differing from glucose only by the hydroxyl group configuration at the…
Q: All sugar residues are in their D-isomeric forms. What are the three different sugars?
A: Sugar is a general name given to soluble carbohydrates that are sweet in taste and most of which are…
Q: If thymine nucleotides are degraded by the same enzymes as those catabolizing uridine nucleotides,…
A: The cleavage of the ring structures metabolizes thymine and uracil nucleotides. The usual end…
Q: Why are allosteric enzymes crucial for the control of metabolism?
A: Allosteric enzymes are considered as an enzyme, which changes its structure upon binding to the…
Q: Many eukaryotic enzymes, such as fatty acid synthase, are multifunctional proteins with multiple…
A: multifunctional enzymes are those enzymes in which there are two or more active sites.
Q: What is the oligosaccharide-transferring moiety in N-link glycosylation?
A: N-linked glycosylation, is the attachment of an oligosaccharide, to a nitrogen atom mostly of the…
Q: Discuss the difference between an ⍺-D-glucose and a β-D-glucose
A: α- glucose and β- glucose both are the two cyclic hemiacetal forms of glucose which a carbohydrate…
Q: . Provide an explanation for the fact that a-D-mannose is more stable than B-D-mannose, whereas the…
A: Anomers are diastereomers that differ only at the hemiacetal or acetal carbon. The hemiacetal or…
Q: The enzyme phosphoglucomutase interconverts glucose-1-phosphate and glucose-6-phosphate. Why is this…
A: Phosphoglucomutase (PGM) catalyzes the interconversion between glucose-1-phosphate (G-1-P) and…
Q: Which of an alpha-D-2,3-di-O-methylglucopyranose or alpha-D-2,3, 6-tri-O-methylglucopyranose…
A: Glucose is a type of carbohydrate, or specifically monosaccharide, which is formed during…
Q: What is the secondary structure of glutelin? Are there many or few alpha helices, beta sheets?
A: Secondary structure of proteins consists of various chain of amino acids which are then stabilised…
Q: All sugar residues are in their D-isomeric forms. What kind of glycosidic linkage is between the…
A: Glycosidic bond forms between the two monosaccharide units through the dehydration reaction.
Q: Would you expect lysozyme to hydrolyze cellulose? Why or why not?
A: Lysozyme is an antimicrobial enzyme that forms a part of the innate immunity. It is also called…
Q: The formation of thymidylate is typically coupled with the synthesis of which amino acid? O Cysteine…
A: Thymidylate or thymidine monophosphate (TMP) is a nucleotide base monomer in DNA. Deoxyribonucleic…
Q: You have ordered the tripeptide Glu-Cys-Gly from a company and they have delivered Gly-Cys-Glu…
A: Amino acids are considered as the monomer unit of the polypeptide chain, which together joined by…
Q: Why is gluose broken down in a series of steps?
A: Glycolysis is the process of breaking down a glucose molecule into two pyruvate molecules. Here, a…
Q: What aspect of glycogen structure does free glucose represent?
A: Glucose is C6H12O6 whereas glycogen is (C6H10O5)n . Both the structure contains six carbon atoms.…
Q: Why can six-carbon sugars sometimes form furanose rings and other times pyranose rings?
A: Monosaccharides are the simplest form of carbohydrates that cannot be broken down by hydrolysis into…
Q: Why is methionine (Met) not found on the inside of a protein even though it is hydrophobic?
A: The amino acid methionine is considered as one of the essential amino acids. It is a hydrophobic…
Q: Why is it reasonable to expect that glucose6-phosphate will be oxidized to a lactone rather than to…
A: Introduction: The structure of glucose 6-phosphate is here:
Q: A researcher claims to have discovered a variantform of glycogen. The variation is that it has very…
A: Glycogen is made up of glucose. It has more number of branching as compare to amylopectin. Glucose…
Q: Why is it reasonable to expect that glucose6-phosphate will be oxidized to a lactone (see Question…
A: Glucose-6-phosphate is a compound of glucose that is an ester chemically. It is a phosphorylated…
Q: Lactate is a dead-end product in that its sole fate is to be converted back into glucose. Why then…
A: Cellular respiration is the catabolic process by which the cells break down glucose molecules and…
Q: Draw the tetrapeptide Met-Ile-Lys-Glu at a ph of 7?
A: The pKa values of amino acid side chains play an important role in determining the pH-dependent net…
Q: The sucrose substitute tagatose is produced by hydrolyzing lactose and then chemically converting…
A: Introduction: Tagatose is a ketohexose that appears similar in structure to D-fructose, except for…
Q: Illustrate and explain the difference between α-D-glucopyranose and β-D-glucopyranose structures.
A: Glucose is the most abundant monosaccharide which was composed of the molecular formula C6H12O6 . it…
Q: Provide an explanation for the fact that a-D-mannose is more stable than B-D-mannose, whereas the…
A: The anomeric effect is a electrostatic repulsion effect between the electron pairs of the ring…
Q: Why are the most commonly observed conformations of the ribose ring those in which either atom C2′…
A: Penta furanoses form part of monomer units in nucleic acids , four atoms of the five membered ring…
Q: What type of protein structure does the active form of Catechol-oxidase most likely possess?
A: Catechol oxidase is a copper oxidase and contains a type 3 di-copper cofactor. It catalyzes the…
Q: Can you please describe the specific components that each of these structures are comprised of (…
A: Proteins are the biomolecules which are made up of amino acids. Amino acids are joined together with…
Q: What is the pI value of phosphoglucomutase?
A: Phosphoglucomutase is a chemical that moves a phosphate bunch on an α-D-glucose monomer from the 1'…
Q: Draw the Fischer Projection, Haworth and Chair conformation for D-Glucose
A: Carbohydrate sugars are present in several forms. These conformations are either open in a chain…
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- Which of an alpha-D-2,3-di-O-methylglucopyranose or alpha-D-2,3, 6-tri-O-methylglucopyranose represents a glucose unit in glycogen which was originally carrying an (alpha 1-->6) glycosidic bond?All sugar residues are in their D-isomeric forms. What kind of glycosidic linkage is between the first and second residues? What kind of glycosidic linkage is between the third and second residues?What is the structural relationship between L-glucose and D-glucose?
- Why is it reasonable to expect that glucose6-phosphate will be oxidized to a lactone rather than to an open-chain compound?Why is it reasonable to expect that glucose6-phosphate will be oxidized to a lactone (see Question 52) rather than to an open-chain compound?Why "cellulose is composed of a long, branced chain of B-glucose subunits" is false?
- Commercially available high-energy formulas for premature infants are rich in triacylglycerols containing short- and medium-chain fatty acids esterified at the sn-3 position. Why?What is the structural difference between glucose and (a) β-D-glucuronate,(b) β-D-glucosamine, (c) N-acetyl-β-D-glucosamine?All sugar residues are in their D-isomeric forms. Is this trisaccharide a reducing sugar? Why or why not?
- How would you describe the conformation of the 6-membered ring of sucrose?A tripeptide has the following sequence: Glu-Trp-Arg What is the net charge of this tripeptide at physiological pH?A mature glycogen particle extends out from the homodimer, glycogenin, typically having 12 tiers of chains with two chains per tier and 13 residues per chain. How many glucose residues are in such a particle?