A heptapeptide that puncture the bacterial cell wall has just been recently isolated from the venom gland of a frog. Use one letter code of amino acid: What is the C-terminal residue? What is the N-terminal residue? What is the sequence of Peptide 3? What is the sequence of Peptide 5? What is the over all amino acid sequence?
Q: 1. Fact Check Match the following statements about protein struc- ture with the proper levels of…
A: The polypeptide chains are folded into their native conformations in order to become biologically…
Q: Which of the following is/are a nucleophile(s) at pH 12? O guanidinium O hydroxyl O thiol amine Both…
A: Amino acids are compounds containing carbon, hydrogen, oxygen and nitrogen and serve as monomers of…
Q: Which of the following sets corresponds to polar charged amino acids? a. Ser, His, Thr b. Met, Ile,…
A: Amino acids are biomolecules that have an amino group and a carboxyl group attached to the same…
Q: Tyrosinase enzyme activity is assayed by monitoring the oxidation of 3, 4-dihydroxyphenylalanine…
A: Enzyme activity is defined as the micromole of the substrate formed per minute of reaction. Specific…
Q: Conjugated proteins which are a combination of amino acids and carbohydrates O A. nucleoproteins OB.…
A: Based on the composition, proteins are of two types, simple and conjugated proteins. The simple…
Q: What is the process that sustains the redox balance of glycolysis under aerobic conditions
A: A redox reaction is where oxidation and reduction occur simultaneously. In glycolysis, there is a…
Q: Folding is: formation of the primary structure of the protein phosphorylation of serine residues. in…
A: The most prevalent organic molecule in a living system is a protein. They can be found throughout…
Q: Which of the following is incorrect? a. Amino acids may have one or more triplet codes or codons b.…
A: A codon is a sequence of triplet nucleotides (a set of three consecutive nucleotides) on DNA or RNA…
Q: A 0.5µM solution of the protein in 75mL is what you want. In micrograms, how much of the protein do…
A: Molar concentration is a measure of the concentration of a solute in solution with respect to the…
Q: Riboflavin gives rise to cofactors: Select one: O a. All of them O b. FAD; FADH2 O c. NAD+; NADH d.…
A: Introduction: Riboflavin is likewise known as Vitamin B2. It is an important food supplement.…
Q: For question 19, create a diagram for the P generation (parent generation) and F1 generation (first…
A: Purebreds are the individual with homozygous combination of alleles. Alleles are the alternative…
Q: What metabolic structure is produced from the carbon atoms of each of the following amino acids?…
A: Metabolism of amino acids results in the removal of amino group and entry of the remaining carbon…
Q: Word bank: oxygen, hydrogen, ionic, polar, nonpolar, hydrophilic, hydrophobic, hydrophobic force…
A: Introduction : In addition to being a polar molecule itself, water is also a polar solvent. When…
Q: You’ve setup an in-vitro experiment to measure molecular motors and have an irreversibly binding ATP…
A: Molecular motors in biological systems are molecular machines that harness energy from diverse…
Q: Choose reaction #6 or #10 in glycolysis and write out the complete reaction. Then, answer the…
A: Glycolysis is a catabolic pathway that causes breakdown of glucose into pyruvate. It is the first…
Q: The patient complains about excess sweating, tiredness, bone pain. Her vitamin D levels were…
A: When the body does not get enough nutrients, such as vitamins and minerals, this is referred to as a…
Q: 2. 3. 4. Give an explanation for your results with the distilled water. Which solution was…
A: Osmosis describes the direction in which water will flow when two solutions are separated by a…
Q: Which of the following properties of a protein is least likely to be affected by denaturing agents?*…
A: Proteins are the biopolymers that are organised in four levels of structural organisation. Primary…
Q: Hello need help with this question Unit is biochemistry, you could draw out the structure. Could you…
A:
Q: If Km1 > Km2, then the affinity of the enzyme to the substrate with Km1 is: Select one: a. Lower…
A: Enzyme kinetics is a branch of biochemistry that deals with the rate of catalysis of any enzymatic…
Q: What are the advantages and disadvantages of using the Lieberman-Burchard Test for Lipids
A: Lieberman-Burchard Test : this is the specific test used for detection of cholesterol in which…
Q: Write down the amino acid sequence of the tripeptide shown below. CH3 H H₂N NH -NH,
A: The above given figure is of a tripeptide. Since we know that an amino acid sequence begins with…
Q: The steps of glycolysis between glyceraldehyde 3-phosphate and 3-phosphoglycerate involve all of the…
A: Glycolysis is a catabolic pathway where glucose is broken down into pyruvate molecules that enter…
Q: For the organism that live there, only the size of a habitat matters, not it’s shape. true or…
A: The composition and arrangement of physical matter at a location is defined as habitat structure. A…
Q: Explain, which site of the heme structure, A or B, is this prosthetic group plugged into the core…
A: Myoglobin is an oxygen-binding globin protein found mainly in the muscles of almost all mammals. It…
Q: Given the curves below, what are the dissociation constants for proteins A and B? 100 80- 60 40 20 0…
A: Kd is dissociation constant which is equal to ligand concentration at half maximum saturation of…
Q: Why do we pasteurize much our food instead of sterilizing it? a) sterilizing can be cost prohibitive…
A: Microbes need to be in check if infections and diseases are to be prevented from spreading.…
Q: Regarding light spectroscopy, which of the following statements is correct? The spectral lines are…
A: Introduction: Spectroscopy is the study of light emission and absorption of light and other…
Q: Given the active site and reaction mechanism, identify the mechanism of irreversible inhibition for…
A: Enzyme inhibitors are the chemical substances that inhibit the catalytic activity of enzymes either…
Q: a peptide has the sequence: Asp-His-Tyr-Cys. What is the net charge on this molecule at pH 7.0? Will…
A: Given, Asp-His-Tyr-Cys thus considering Asp at the amino terminal and Cys at the carboxylic terminal…
Q: Assuming that all the carbon skeleton of alanine is completely oxidized and released as CO2. How…
A: Alanine is an amino acid that takes part in protein synthesis. Alanine is a hydrophobic amino acid…
Q: 1. Which expression below shows hemoglobin bound to a proton a. HbH+ b. HbO₂H+ c. HbBPG d. None of…
A: Note : Hi ! Thank you for the question. We are authorized to answer one question at a time. Since…
Q: I just read an abstract of the paper “Disulfide bond-disrupting agents activate the tumor necrosis…
A: The TNF or Tumour Necrosis Factor receptors are Cysteine Rich Domain (CRD) containing Receptors. It…
Q: Given the following reactions, identify the class and subclass of the enzyme involved
A: The enzyme commission divided enzymes into six different classes. This classification if carried out…
Q: Which of the following enzymes are required for the shown reaction? a. a-ketoglutarate…
A: The last common mechanism for the oxidation of proteins, lipids, and carbohydrates is the citric…
Q: norget (ol noitesingtosTRID insistib (a) Highlight four significant reasons why porphyrin…
A: Introduction: Photothermal cancer therapy is mainly used for treating solid tumors. The treatment…
Q: QUESTION 25 Which of the following statements about 'phytochemicals' is not accurate? are compounds…
A: Correct option - D - Dietary reference doesn't include recommendation for phytochemicals.
Q: how many hydrogen bonds can form between amino acid and water molecules
A: Hydrogen bonds are the electrical attraction between a hydrogen atom in a polar water molecule and a…
Q: The presence of glucose in appreciable amounts in the urine is referred to?* Please choose one…
A: Human urine is primarily composed of water (95%). The rest is made up of urea (2%), creatinine…
Q: Criven below givers are some statement in which of the Coenzymes withe their vitamin enyame and…
A: Coenzymes are essential for some Enzymes to carryout their catalytic activity. Coenzymes can alone…
Q: 1. Proteoglycans, such as heparan sulfate are defined as having sulfated glycosaminoglycans that are…
A: fggd
Q: Check the box under each structure in the table that is an enantiomer of the molecule shown below.…
A: Enantiomers are mirror images which can not be superimposed, hence, they are non-superimposable…
Q: Which of the following statements regarding hydrogen bonding is false? Hydrogen bonding occurs…
A: When hydrogen is covalently linked to a electronegative atoms like oxygen or nitrogen, the bond…
Q: The picture below is of an amino acid called lysine: H₂N. NH₂ OH Download During a period of…
A: Glucose molecules are metabolized through the glycolytic pathway to derive energy in the form of ATP…
Q: Monocytes enlarge into macrophages and engulf microbes. a) True b) False
A: Monocytes are a type of white blood cells that help in protecting the body from infections. They…
Q: The structure of the heme prosthetic group is shown. This group is plugged into the protein moiety…
A: Prosthetic groups are non amino acid components that are covalently linked to the protein. Heme…
Q: Discuss some of the strategies which have been developed for using nucleic acids as therapeutic…
A: Elucidation of metabolic pathways that are related to a disease combined with the unravelling of the…
Q: Which of the following best describes this type of mutation? Original – CCU-GAU-GAG-UCA…
A: Introduction : A mutation is a modification to the genetic sequence. Mutations can involve the…
Q: What is the role of lysozyme and a low strength ionic buffer
A: A naturally occurring enzyme lysozyme is present in secretions such as saliva, milk, and tears.…
Q: Explain the experiment performed by C. Anfinsen with ribonuclease A and formulate the Anfinsen dogma…
A: Anfinsen sought to show that the protein's amino acid sequence contained all of the data necessary…
A heptapeptide that puncture the bacterial cell wall has just been recently isolated from the venom gland of a frog.
Use one letter code of amino acid:
What is the C-terminal residue?
What is the N-terminal residue?
What is the sequence of Peptide 3?
What is the sequence of Peptide 5?
What is the over all amino acid sequence?
Step by step
Solved in 4 steps
- Sphingolipid Ceramide Function Name and Structure of Attached Molecule Sphingomyelin GangliosideLefer to the figure showing the molecular structure of dimethylmercury. H–C-Hg C-H H. Exposure of human skin to a single drop of dimethylmercury can lead to death, as it is highly poisonous and passes easily cell membranes. Based on its structure, why is it able to pass so easily through cell membranes? I-0-I IICIHAbsorbance spectrum of Ninhydrin curve 1,6 1,4 1,2 0,8 0,6 0,4 0,2 100 200 300 400 500 600 700 800 900 -0,2 Wavelength nm - Arginine - Proline -Leucine 2. Discuss the absorption spectra of the 3 amino acids as given in graph 1. 1. Absorbance (OD)
- The peptide CMYLES is reacted with phenylisothiocyanate under basic conditions followed by incubation with anhydrous trifluoroacetic acid. What are the products of this reaction? PTH-CMYLES Thiazolinone derivative of cysteine, MYLES O PTH-C, PTH-M, PTH-Y, PTH-L, PTH-E, PTH-S PTH-C, MYLES PTH-S, CMYLE80mL of a 0.3M solution of hexapeptide Leu-His-Cys-Glu-Asn-Arg is adjusted to pH=pl. The solution is then titrated with 0.2M HCI to a final pH of 2.1. Sketch the titration curve, labelling the pH and volume axes. Indicate the volume of HCl needed to reach each relevant pKa value and equivalence point(s). Relevant pka values are: 2.1, 4.3, 6.0, 8.3, 9.8, and 12.5.N-(2-hydroxyethyl)piperazine-N'-(2-ethanesulfonic A purified protein is in a Hepes acid) buffer at pH 7 with 375 mM NaCl. A dialysis membrane tube holds a 2.0 mL sample of the protein solution. The sample tube floats in a beaker containing 1.00 L of the same Hepes buffer, but with 0 mM NaCl, for dialysis. Small molecules and ions (such as Na+, Cl-, and Hepes) can to diffuse across the dialysis membrane, but the protein cannot. Assume there are no sample volume changes during the dialysis. Calculate the final concentration of NaCl in the protein sample once the dialysis has come to equilibrium. Calculate the final NaCl concentration in the 2.0 mL protein sample after dialysis in 150 mL of the same Hepes buffer, with 0 mM NaCl, twice in succession. [NaCl] after a single dialysis: [NaCl] after a double dialysis: mM mM
- Carotene - Xanothophyll Chla –Chl, 1. Explain why chlorophyll b is at bottom and carotene is at the top of the chromatography paper? 2. What are the prouutts anu supstrate ofDehalogenase enzymes catalyze the clevage of C-X bonds. One such dehalogenase catalyzes the following reaction. An active site aspartate is thought to carry out the initial nucleophilic attack that expels the chloride. Select the most likely intermediate in the reaction. (Note the stereochemistry. Refer to P11.19 in the textbook if needed.) O O A C D OE -CH₂ H H₂C™ CO₂ H B CO₂ CI N H₂O Cr CO₂ H CO₂ нотум CH3 D CO₂ five N E CH₂Trace the pathway of [14C]bicarbonate through gluconeogenesis. Use an asterisk to indicate the location of ¹4C in all intermediates and in the final gluconeogenesis product, glucose. HO-C O- =0 [¹C] Bicarbonate CH₂OPO H-C-OH --OPO O 1,3-Bisphospho- glycerate ↑ -COO -CH₂ TC=O coo Oxaloacetate CH,OPO H-C-OH COO ↑ 3-Phosphoglycerate CH₂ C-OPO -COO Phosphoenolpyruvate CH,OH HC-OPO, COO 2-Phosphoglycerate Answer Bank
- All statement true about solanaceous alkaloids except: solanaceous alkaloids are esters of the bicyclic aminoalcohol 3-hydroxytropane or of related aminoalcohols. have been modified by preparing other esters of 3-a-tropanol or making a quaternary of the nitrogen in tropanol or scopine with a methyl halide. The aminoalcohol derived from scopolamine, namely tropin, has the axial orientation of the 3-hydroxyl group but, in addition, a B-oriented epoxy group bridged across the 6,7 positions several different solanaceous alkaloids known, it has been indicated that (-)- hyoscyamine, atropine, and scopolamine are the most important.An octapeptide was hydrolyzed and the amino acids separated. Its amino acid composition was determined: Gly (1); Ala (2); Val (1); Lys (2); Met (1); Asp (1). After incubation with FDNB and hydrolysis, 2,4-dinitrophenylalanine was detected. NO, H N -C- COOH H O,N CH, Treatment with cyanogen bromide, which cleaves at M, resulted in two fragments: a pentapeptide containing two K residues and a tripeptide containing V, G, and A. The residues are not listed in any particular order. After treatment with trypsin, which cleaves at R and K, there were three fragments: two dipeptides and MGAV. What is the sequence of the octapeptide? Use the one-letter abbreviations for the amino acids, and do not use dashes. octapeptide sequence:DQuestion 21 GC and HPLC were used in this course as: O synthetic techniques analytic techniques purification techniques O liquid-liquid extraction techniques D Question 22 Based on the boiling point of acetone (56° C), 3-methylbutylacetate (141°C), and 3-methyl-1- butanol (131°C), which compound will be the first to come off (elute) the GC column? O acetone O 3-methylbutylacetate O 3-methyl-1-butanol