5. Consider the reaction for assembly of a tetrapeptide from for amino acids: Serine + Proline + Alanine + Methionine SPAM tetrapeptide Is this reaction anabolic or catabolic? Is this a positive or negative delta G reaction? List at least three other terms you could use to describe this reaction.
Q: What effect is seen on a Lineweaver-Burke graph when a competitive inhibitor is added to an…
A: Competitive inhibition is an enzyme inhibition process where an inhibitor molecule (similar to the…
Q: Place the following enzymes in the correct order of action RNA 5' triphosphatase RNA polymerase II…
A: The newly synthesised mRNA is called the primary transcript. Before the primary transcript can be…
Q: Test I. MULTIPLE CHOICE: Read the statement carefully. use CAPITAL letters. 1. It refers to the…
A: Note: Hi! Thank you for the question. We are authorized to answer one question at a time. Since you…
Q: Exergonic and endergonic biochemical reactions; the role of ATP and other macroergic substances in…
A: INTRODUCTION : ATP - Adenosine triphosphate, it is the main energy currency or units, which is…
Q: Consider the enzyme, ATCase. All are true except: It's K effectors are ATP and CTP It is a K…
A: ATCase (Aspartate carbamoyltransferase) is an enzyme which catalyzes the first step of the synthesis…
Q: A patient weighing 38.4 pounds presents with a bacterial infection and is prescribed a course of…
A: A multitude of bacterial infections can be treated with the antibiotic amoxicillin. These include…
Q: Which of the following is CORRECT? A) Pyruvate kinase requires Mg2+ for maximal activity. B) A small…
A: Pyruvate Kinase is an enzyme which catalyzes the last step of glycolysis, i.e, conversion of…
Q: 2. What is the total yield from one molecule of glucose to two molecules of L-malate? A. 2 ATP/GTP,…
A: Glucose is converted to L-malate via the following pathway: 1. Glycolysis: 1 glucose is converted to…
Q: Which of the following statements is FALSE regarding oxidative phosphorylation? The pH is higher in…
A: Cellular respiration is a collection of three metabolic pathways that generate ATP by oxidation of…
Q: ATP stock (50 µM): Make pre-dilutions with 20, 15, 10, 5, 2,5 and 1,25 µM ATP (1000 μL of each)…
A: Molarity is a way of representing the concentration of a solution. Molarity is the number of moles…
Q: QUESTION: For each enzyme identify the transition-state inhibitor analog by drawing a circle around…
A: Whenever a reaction takes place there are reactants and they form products but in between, during…
Q: Given that the reduction potential Eo'= -320, +10, +816, and +50mV for NAD+, fumarate, O₂ and…
A: An oxidizing species is the substance that donates electrons, and a reducing species is the…
Q: Which of the following laws of matter best describes the statements on sulfide minerals? Select one:…
A: INTRODUCTION : Sulfide minerals - They are a class of minerals consisting of sulfide or disulfide…
Q: What effect does a negative effector have on the graph of reac- tion rate (V) vs. [substrate] for an…
A: INTRODUCTION : Allosteric enzymes : Allosteric enzymes are those enzymes which have an additional…
Q: Consider the structure of the tripeptide below. H H₂N-C-C- 0=6 CH₂ CH₂ C=0 1 NH₂ pH 5: O pH 10: H O…
A: The given peptide has three amino acids joined by the peptide bond. There are three ionizable groups…
Q: Kwon Soon-young was asked by his CHEM 160.1 lab instructor to determine the isoelectric pH of an…
A: Proteins are composed of twenty standard amino acids attached together via peptide bonds. These…
Q: vo (μM/min) 25 20 15 10 5 0 7 VO (μM/min) VS pH 8 pH 9.5 10.4
A: Enzymes are the catalysts that function to increase the rate of reaction by decreasing their…
Q: 1. What is the sequence of the heptapeptide produced upon treatment with trypsin? Fill each blank…
A: Specific enzymes have specific cleavage point in amino acids. Chymotrypsin is serine…
Q: Which of these are components of animal fatty acid synthase (FAS)? B-ketoacyl reductase enoyl…
A: The majority of healthy human tissues primarily create new structural lipids from circulating…
Q: A peptide has the following amino acid composition: 2 Met, 2 Phe, 2 Glu, 1 Arg, 1 Lys, 1 Val, 1 Leu,…
A: Recall that: Amino acid sequences are written with N-terminal amino acid on the left and C-terminal…
Q: 5. In the early days of protein biochemistry, these proteins were described using "operational…
A: Operational definition is applicable to many things in our everyday life. It is most popularly used…
Q: The proton-motive force is a measure of the potential energy generated across the mitochondrial…
A: INTRODUCTION : Proton-motive force : It is a measure of the potential energy generated across the…
Q: AMP is an activator of fructose 1,6-bisphosphatase (FBPase-1) True False
A: Glycolysis is the process by which one molecule of 6 carbon glucose is broken down into 2 molecules…
Q: 1. Under what circumstances in the cell would the entire pentose phosphate pathway be carried out…
A: In animal tissues, glucose has two possible fates: be oxidised into carbon dioxide and water by…
Q: More energy comes out of glucose degradation if pyruvate proceeds to the mitochondria for oxidative…
A: Degradation of glucose is termed as glycolysis which is a catabolic pathway in which 6 carbon…
Q: Describe the biological functions of lipids. What factorscan affect the transition temperature (Tm)…
A: Lipid is a biomolecule which is soluble only in nonpolar solvents. They are hydrocarbons which…
Q: State what each of the following symbols stands for, be specific. 4. M 5. SD 6. α
A: Introduction There are various symbols are used in science. Scientific writing requires various…
Q: 018 You have isolated a gene that spans a total of 1800 nucleotides. The gene contains 400…
A: Genes are the sequences of nucleotides attached together through phosphodiester bonds. Genes are…
Q: 384 Hemoglobin: Allostery and Evolution Q5.1 - 2,3-BPG is a negative allosteric regulator of…
A: Hemoglobin (Hb) is a protein that is found in red blood cells. A specific protein called haemoglobin…
Q: What is expected theoretical number of copies of DNA molecules after 28 cycles in a PCR experiment?…
A: INTRODUCTION: DNA : Its fullform is Deoxyribo nucleic acid and It has a double stranded helix…
Q: Question 9 Which of the following fatty acid does have greater solubility in wat O 16:0 O 18:0 O…
A: Fatty acids are a class of lipids that are nonpolar and are insoluble in water. The naturally…
Q: Chemistry Most of the reactions in gluconeogenesis are the simple reversal of the ‘forward’…
A: In gluconeogenesis pathway, the formation of phosphoenolpyruvate from oxaloacetate is catalyzed by…
Q: 1. Glucagon is a hormone that involves in the regulation of carbohydrate homeostasis.…
A: Proteins are made up of amino acid residues linked via a peptide bond. A peptide bond between two…
Q: What is the charge on the following peptide at standard biochemical pH? S-Y-D-F-K-I-V-F-L-L +2 -1 O…
A: Peptides are composed of amino acids. Amino acids are biomolecules with an alpha carbon bonded to an…
Q: 2. You made a pH=2.5 buffer solution by mixing NaOH and glycine to give a solution that is 0.20 M in…
A: Dissociation of a weak acid is mathematically described by the Henderson-Hasselbalch equation: pH =…
Q: 4. RNAse A cleaves the phosphodiester backbone of RNA. Draw its mechanism.
A: INTRODUCTION : RNA - It is called Ribonucleic acid, It is a nucleic acid which is present in all…
Q: Lactate dehydrogenase isoforms contain "H" and "M" subunits. In total, how many subunits are found…
A: - A dehydrogenase is an enzyme that transfers a hydride from one molecule to another. - Enzyme…
Q: a) Draw the A-T and G-C base pairs. - Label the bases…
A: DNA are polymers of nucleotides. A nucleotide consists of a nitrogenous base(A, T, G, C) attached to…
Q: 1. Why do proteins become polycations at extremely low pH and become polyanions at very high pH? 2.…
A: Proteins are biological macromolecules formed by monomers of amino acids. The amino acids have side…
Q: What are the key differences between DNA synthesis (in the context of DNA replication) and RNA…
A: DNA is the genetic material. Replication is the process that copies the DNA to produce identical…
Q: Metabolic pathway characteristics: a. Give one example of an amphibolic pathway. b. What…
A: Metabolic pathways are a series of process which includes chemical reactions occurring in a cell.…
Q: 8. Anaplerotic and amphibolic reactions in TCA.
A: In aerobic condition, pyruvate in the presence of pyruvate dehydrogenase complex produces Acetyl…
Q: DNA: Explain nick translation and strand displacement
A:
Q: Biochemistry：Lable out the main difference of Primary，secondary，tertiary，and quatrenary structure.
A: Proteins are biomolecules composed of amino acids. Proteins have four levels of conformations known…
Q: Calculate the pI of the peptide KLMRDSP (pKa = 3.5, 3.9, 9.5, 10.0, 12.5).
A: The amino acids contain ionizable groups. The ionic form of these groups depends upon the pH of the…
Q: What is ATP? in 5 sentences Why is ATP important in the body? in 5-7 sentences
A: There are many forms of energy. But living system needs one form of energy i.e., chemical energy.…
Q: How many cycles of the synthesis pathway are needed to produce lauric acid, C₁1H23COOH? ||…
A: The production of triglycerides from acetyl-coenzyme A (acetyl-CoA) subunits is known as…
Q: Which one of the following amino acids is phosphorylated during the process of promoter clearance by…
A: The transcription of genes leading to the synthesis of proteins inside the cells is carried out by…
Q: i) Re-arrange with the Michaelis Menten equation so it involves the ratio [S] Show all steps…
A: Michaelis-Menten equation A mathematical model called the Michaelis-Menten equation is used to…
Q: 31. Margarine is made from vegetable oil by a chemical process. Do you suppose this process converts…
A: Margarine is a product derived from vegetable oil, obtained by the hydrogenation,…
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- 2. A mixture of the following amino acids (glu, leu, val, arg, ser, phe) was obtained upon complete hydrolysis of a hexapeptide. a. Edman’s reagent releases leucine b. Hexapeptide with carboxypeptidase releases serine. c. Hexapeptide with trypsin forms a tripeptide A with leucine at the N terminal and tripeptide B with valine at the N terminal. d. Tripeptide A with carboxypeptidase releases arginine and a dipeptide with glutamic acid at C terminal. e. Tripeptide B with chymotrypsin form releases serine and another dipeptide. Give: 1. the amino acid sequence of tripeptide A and B. 2. the amino acid sequence in the above hexapeptide.8. Match each of the following amino acids with the intermediate needed for its synthesis.(a) 3-Phosphoglycerate 1. glutamate 2. serine 3. asparagine (b) oxaloacetate 1. glutamate 2. serine 3. Asparagine#1)What are the main roles of the following amino acids; (within the crystal structure and/or active site. be specific, with pictures and mechanistic arrows as needed) -Glu305 from pyruvate carboxylase -Gln23 from Penecilin Acylase -Ser203 from Acetylcholinesterase #2) Why is L-tetrahydro-2-furoic acid would be a suitable inhibitor for Proline oxidase?
- 8. The chemical structure of Coenzyme A contains the following except— a phosphoanhydride moiety. a β-mercaptoethylamine residue. a lipoic acid residue. a pantothenic acid residue. an adenosine-3’- phosphate.1. What is the isoelectric point (pI) of lysine which has pKa values of 2.1 for the α carboxyl group, 9.7 for the α amino group and 10.5 for the side chain amino group? 2. Which of the following is most likely to be found on the exterior of a protein? A) Pro B) Trp C) Ser D) Glu 3. The type of reaction that forms a peptide bond is A) Elimination B) Hydrolysis C) Nucleophilic substitution D) Condensation1.A glucogenic amino acid is an amino acid that can be converted into glucose through glycogenesis. An example of glucogenic amino acid is _____________. * a.Histidine b.Lysine c.Leucine d.All of the given 2.The force between methylamine and acetate will be greater in methanol than in water because ___________. * a.Methanol has a lower dielectric constant than water b.Methanol, but not water, is structurally similar to methylamine c.Acetate and methylamine are more soluble in methanol than in water d.Dipole-dipole interactions between acetate and methylamine are induced in methanol, but not in water 3.Within the aqueous environment of an animal cell, sugars are stored as polymers rather than monomers. If the sugars were stored as monomers instead of polymers, which of the following properties would be least affected? * a.pH b.Viscosity c.Freezing point d.Osmotic pressure
- 1. Depict the structure features in the active site of cysteine protease 2. provide a step-wise reaction mechanism to show the hydrolysis of the peptide bond catalyzed by a cysteine protease1. Substrates and reactive groups in an enzyme’s active site must be precisely aligned in order for a productive reaction to occur. Why, then, is some conformational flexibility also a requirement for catalysis? 2. Some plants contain compounds that inhibit serine proteases. It has been hypothesized that these compounds protect the plant from proteolytic enzymes of insects and microorganisms that would damage the plant. Tofu, or bean curd, possesses these compounds. Manufacturers of tofu treat it to eliminate serine protease inhibitors. Why is this treatment necessary?6 (a) A decapeptide has the following amino acid composition: Ala2 , Arg, Cys, Glu, Gly, Leu, Lys, Phe, Val Partial hydrolysis yields the following tripeptides: Cys-Glu-Leu + Gly-Arg-Cys + Leu-Ala-Ala+ Lys-Val-Phe + Val-Phe-Gly. Reaction of the decapeptide with 2,4-dinitrofluorobenzene yields 2,4-dinitrophenylysine. From the experimental data, deduce the primary structure of the decapeptide. (b) Suggest a scheme you will follow to synthesize the dipeptide Ala-Gly
- 1. provide three reasons why most of the research on carotenoids concentrates on b-carotene. 2. draw the retinol ester that has stearic acid as the carboxylic acid portion of its structure.The reverse synthesis of ceramides synthesized biologically from sphingosine is possible. 1. What type of reaction would this be? 2. How would the pH of the skin where this reaction is most likely to take place affect this reaction?1 ).Which of the following accurately describes substrate specificity for serine proteases? A.The binding cleft B.Mg2+ metal activated enzyme C.The catalytic triad D.Facilitates redox chemistry E.Stabilizes the transition state 2). Which of the following amino acid residues would not provide a side chain for acid-base catalysis at physiological pH? select all that apply leucine aspartic acid histidine lysine Please answer both correct i will give u upvote.