Why doesn't the enzyme bromelain digest the proteins in your stomach when you eat fresh  pineapple?

Q: Because of the helix dipole, the phosphate ions are likely to bind to a.   The side-chains of…

A: Function of a protein depends on it's three dimensional structure and structure of the protein can…

Q: a) A plasmid DNA in bacteria has a length of 14,000 bp and an Lk of 1300. Calculate the superhelical…

A: The linking number of DNA describes the topology of a double-stranded DNA. It is the number of times…

Q: ) What would be the predominant ionization states of this amino acid at physiological pH (7.4) and…

A: Amino acids contain an alpha-amino group, an alpha-carboxylic group, and a side chain. The side…

Q: Explain the molecular basis for animal fat being solid at room temperature but vegetable oil being…

A: Lipids is a term used of chemically diverse group of biomolecules that have two things in common:…

Q: A. Will decreasing the amount of energy needed to make an exergonic reaction occur cause the…

A: The thermodynamics of a chemical reaction focuses on the energetics of the products and the…

Q: What is the meaning of "in vitro"?

A: Biochemistry is an attempt at explaining the living cell in chemical terms. A living cell is the…

Q: An egg placed in boiling water becomes hardboiled in 3 minutes. What changes have occurred in the…

A: All proteins have three levels of conformations known as primary, secondary, and tertiary.…

Q: 1. You were asked to prepare 1.0 L of a 0.10 M solution of sulfuric acid from a 3.0 M solution of…

A: Solutions of different concentrations of salts and acids need to be prepared for routine laboratory…

Q: Each ionizable group of an amino acid can exist in one of two states, charged or neutral. The…

A: pKa is the pH at which half of the acid is dissociated. Given to us is the amino acid histidine with…

Q: Given the R-groups in the peptide GLY-ASN-THR-LYS-HIS. It would most likely be: a)neither soluble…

A: Different amino acids have different R-groups. The R-groups can be polar or non-polar. Polar…

Q: Figure 4.16 - Structure of the Heme Group N H Pyrrole OOC H₂C H₂C H₂C H₂CC HC C-C H = C HgC C NH N 1…

A: These images correspond to the structure or components of heme, an integral part of hemoglobin…

Q: Bacteriophage T7 encodes its own DNA polymerase, gp5, which has both polymerase activity and…

A: In the given graphs, the polymerase activity and exonuclease activity of DNA polymerase, gp5 is…

Q: 10. Vitamin B6: coenzyme form, functional groups, mechanism of action, biological role, sources,…

A: Enzymes are biological catalysts that catalyse biochemical reactions. Most enzymes are made up of…

Q: Question 6 At pH 9.0, which of the peptides listed in Question #4 would bind tightest to a…

A: Hydrophobic interaction chromatography (HIC) separates molecules based on their hydrophobicity. HIC…

Q: 1.) How do enzymes affect the proteins that we ate? 2.) How can co-enzymes affect enzyme activity?

A: Enzymes are bio catalysts that work to catalyse a biochemical reaction by decreasing its activation…

Q: DNA: What is palindromes and secondary structure?

A: Palindromes and secondary structure, both are terms that are related to the structural variation of…

Q: When drugs are bound to plasma proteins, does it intensify their effects?

A: There are two types of drugs in blood: bound and unbound. Depending on the affinity of a specific…

Q: Which conformation of DNA – (i) totally double helix, (ii) minimally unwound or (iii) largely…

A: Just as a high temperature can denature protein, nucleic acids such as DNA and RNA can too be…

Q: what is the dimer of proteins

A: A protein is a biomolecule consisting of many amino acids. It functions as building blocks of the…

Q: Very slight changes in the shape of an enzyme may allow the enzyme to continue to function but at a…

A: Enzymes are biocatalysts that catalyse biochemical reactions. Allosteric enzymes are enzymes whose…

Q: Although phosphoesters are generally not energetic enough to donate the phosphate to make a high…

A: For an energetically favorable reaction, the change in free energy will be negative, and for an…

Q: Consider the peptides Pro-Gin-Val-Phe-His-Asp-Cys and His-Gln-Pro-Cys-Asp-Phe-Val. How do these two…

A: Amino acids are biomolecules in which an amino group and a carboxyl group are linked to the same…

Q: Which is an appropriate statement of involvement of the hydrophobic effect in protein folding? A)…

A: Proteins are composed of amino acids, which are bound together by peptide linkage. Amino acids…

Q: Fill in the blanks: What occurred in the reaction, Sn4+ → Sn²+ A. oxidation B. reduction B.…

A:

Q: The pKa of the Histidine side chain is 6.0. When Histidine is dissolved in a buffer with pH 5.0, the…

A: A molecule's level of acidity is indicated by the pKa value. A proton's grip on a Bronsted acid is…

Q: Does myoglobin have the same high affinity for CO as hemoglobin?

A: Hemoglobin is a multimeric (multi-subunit) protein that transports oxygen from lungs to tissues and…

Q: DNA Protein Wild-type Gene GCCGAA Ala Ala-CH₂ Glu Ser GM AGC What is the subject of the figure…

A: Gene is the functional basic unit of heredity, composed of DNA. There are various functions genes as…

Q: Discuss why fluoroacetate can be called a mechanism-based inhibitor. what is a mechanism based…

A: Introduction Enzymes are known as bio-catalyst. They increases the rate of a chemical reaction by…

Q: The Worthington's manual reports two extinction coefficients for lysozyme. Corvert one into the…

A: A spectrophotometer can measure the amount of light absorbed by a biomolecule and we can use that…

Q: discuss the biochemistry behind disorders related to aromatic amino acids with an aid of an…

A: The major aromatic amino acids are phenylalanine, tyrosine, and tryptophan. Defect in the enzymes of…

Q: Water is present in the cell at a concentration of 55.5 M, whereas P, is present at a concentration…

A: Glyceraldehyde phosphate dehydrogenase is a 37 kDa  enzyme which catalyzes sixth step of…

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: Describe the specific multi-enzyme example discussed in class of how enzyme activity can be altered…

A: Enzymes are usually comprised of proteins. It work as a catalyst for several biochemical reactions.…

Q: A mixture of the following amino acids (glu, leu, val, arg, ser, phe) was obtained upon complete…

A: The following amino acids (glu, leu, val, arg, ser, phe) were obtained from complete hydrolysis of a…

Q: a. Provide a name for both metabolites. b.  What kind of reaction occurs here? c. What enzyme…

A: In glycolysis, a 6-carbon molecule of glucose-6-phosphate is broken down into 3-carbon pyruvate. It…

Q: 2. The role of coenzymes in realizing the catalytic activity of enzymes.

A: Enzymes are biocatalysts that increase the rate of biochemical reactions by carrying out quick…

Q: What would you predict about the ratio of hydrophilic to hydro- phobic amino acid residues in a…

A: Before getting into the calculations, we have to assume that our globular protein have a spherical…

Q: Provide methodologies for the correct use of pH meter.

A: Introduction A pH meter is an electric instrument which is used to measure the hydrogen ion activity…

Q: what is PTM: • Hydroxylation (requiring VitaminC) • Glycosylation

A: PTM stands for post translational modification. It is modification of proteins which includes…

Q: Assumed that you have isolated the protein cytochrome C from a cell lysate. Discuss the advantages…

A: Cytochrome C Cytochrome C is a protein that is loosely bound to the inner membrane of mitochondria…

Q: Which of the following experiments can be used to determine the localization of a protein in living…

A: Confocal microscopy is an optical imaging technique used for increasing optical resolution and…

Q: Which of the following is not true about a-amino acids? have at least 2 pka values O negatively…

A: The proteins are composed of twenty naturally occurring amino acids.  The amino acids can be…

Q: how to interpret Saturation curves for hemoglobin and myoglobin and how these curves change when…

A: An oxygen dissociation curve is obtained when we plot the %saturation of hemoglobin against the…

Q: One sample of the globular protein peroxidase is hydrolyzed by heating with 6 M HC1. A second…

A: Denaturation is the process of loss of native conformation of the proteins. The agents for…

Q: 2. What sample shows a positive result with the Molisch Test? Why did this sample give a positive…

A: Note: Please note that we are supposed to give answer only for the first question. so providing…

Q: Which of the following statements about the malate-aspartate shuttle is false? a) 2.5 ATPs are…

A: Malate-aspartate shuttle : It is a Biochemical mechanism which translocates the electrons which are…

Q: ΔG° indicates the change in the standard free energy as a reactant is converted to product. Given…

A: In a general reaction such as: aA + bB ⇌ cC + dD At equilibrium, the concentration of reactants and…

Q: Enumerate the 4 protein structures and give its corresponding process and location in the cell.

A: A protein is a polymer of amino acids. Protein can assume multiple conformations based on the nature…

Q: Show the Dehydration Synthesis reaction that occurs to form a dipeptide containing the following…

A: Introduction: In the dehydration synthesis reaction, the carboxyl group of amino acid reacts with…

Q: A protein has the amino acid sequence DSRLSKTMYSIEAPAKLDWEQNMAL How many peptide fragments would…

A: Given to us is a protein with the following sequence: DSRLSKTMYSIEAPAKLDWEQNMAL and three reagents…