Which of the following types of bonds are not involved in maintaining the tertiary structure of proteins? A) Hydrogen Bonds B) Disulfide Bonds C) Ionic Bonds D) Peptide Bonds
Q: Which of the following statements is/are TRUE about the Lock and Key model of enzyme-substrate…
A: Enzymes are highly specialized proteins that have extraordinary catalytic power, greater than that…
Q: 1. Consider the following: a) Name it. b) Using the three-letter symbols for the amino acids, how…
A: Peptides are composed of twenty standard amino acids. These twenty standard amino acids differ from…
Q: A competitive inhibitor interacts with the free enzyme to form an enzyme•inhibitor complex (E•I).…
A: Enzyme inhibition is a process by which the activity of an enzyme is altered. Inhibitors are…
Q: An ion exchange resin prefers calcium over magnesium, indicated by Xcalcium = 0.6 and Ymagnesium =…
A: An ion-exchange resin or ion-exchange polymer is a insoluble resin or polymer that acts as a matrix…
Q: Use the table below to answer the question being asked: Protein Ovalbumin Insulin Fibrinogen…
A: Sodium Do-decylSulphate PolyAcrylamide Gel Electrophoresis (SDS PAGE) is a method used to separate…
Q: Why do some enzymes require covalent modifications, such as phosphorylation or glycosylation?…
A: Introduction: Covalent modification involves the addition of a functional group onto the enzymes by…
Q: Wheeler Johnson Principle: Reagents: Reaction: Substance Detected: Murexide Principle: Reagents:…
A: DNA/RNA are nucleic acids, the molecules responsible for carrying genetic information from one…
Q: Identify if SN1, SN2 and so forth. Catabolism of triacylglycerols- beta-oxidation pathway…
A: SN1 and SN2 are common reactions in organic chemistry. SN1 is a two step reaction i.e., substitution…
Q: 1) Which of the following statement(s) regarding the ends of polysaccharides are true? All…
A: The biological macromolecules can be classified as proteins, nucleic acids, lipids and…
Q: *Write structures for the straight-chain (Fischer projection) formula and the indicated anomer of…
A: Carbohydrates are polyhydroxy aldehydes or ketones. They can be classified as monosaccharides,…
Q: What is the hydrodynamic stress of bioreactors when there are cell cultures?
A: Introduction A bioreactor is a vessel or manufactured device which gives biologically active…
Q: Identify the type of inhibition (competitive, noncompetitive, uncompetitive) 1 Enzyme B Inhibitor…
A: Introduction: Enzyme kinetics involves the study of the rate of chemical reactions increased by a…
Q: At a substrate concentration that is much greater than the Km for the reaction, which statement is…
A: An increase in the substrate concentration increases the reaction velocity. The reaction reaches…
Q: Which of the following is a key difference between amylose and cellulose? amylose is a branched…
A: Carbohydrates are classified as monosaccharides, oligosaccharides, and polysaccharides based on the…
Q: ESPIRATION - What is the purpose of cellular respiration? Where is cellular respiration performed…
A: Cellular respiration is the process of oxidizing nutrients like glucose to carbon dioxide and water.…
Q: 1. Calculate the size of the resulting fragments as they will occur after digestion and write the…
A: Lambda DNA is a linear DNA extracted from E coli bacteriophage with 485052 base pairs (bp) At each…
Q: INFLUENCE OF FREE ACID tt #1 tt #2 tt #3 tt #4 CONDITION 4 mL 0.2% HCI + 1 mL starch paste + 1 drop…
A: Effect of saliva on starch: Saliva contains the digesting enzyme amylase, which breaks down starch.…
Q: 1 2 3 4 5 6 N Sample Lysate Name volume 8 Tilapia Cod Sole Perch Tilapia Cod Sole 2 μl Perch 10 με 2…
A: Protein sample: A non-branching sequence of amino acids joined together by a single peptide bond…
Q: What ways do enzymatic catalysts increase the rates of reactions? They lower the activation energy…
A: Enzymes are the biocatalysts that catalyse biochemical reactions . They have specificity in…
Q: The absorption of ketoconazole has been shown to be impaired in patients with drug-induced…
A: Achlorhydria is a condition in which there is no HCl in the stomach. Stomach HCl plays important…
Q: The following are coenzymes or cofactors involved in enzymatic reactions. Identify the biochemical…
A: Enzymes are biological catalysts that increases the rate of biochemical reactions. Most enzymes are…
Q: 5. Consider the reaction for assembly of a tetrapeptide from for amino acids: Serine + Proline +…
A: Cellular metabolism consists of both anabolic and catabolic processes. The energy released during…
Q: Label the diagram below as either passive transport (diffusion or facilitated diffusion) or active…
A: Biological membranes are structures that surround the cell or organelles and act as barriers. An…
Q: First image contains the respective absorbance readings of the samples specified in the 96-well…
A: Protein concentration of unknown sample could be calculated by plotting the graph for standard…
Q: If glucose labeled with 14C in C-3 were metabolized by glycolysis, pyruvate would be labeled in: a.…
A: Glycolysis is the metabolic pathway by which 6 carbon glucose is converted into 3 carbon pyruvate in…
Q: Explain the function(s) of each of the basal transcription factors (the TFII "alphabet soup")
A: Basal transcription factors are required for the initiation of the transcription or mRNA synthesis.…
Q: 16) Region A 17) Region B A) nonpolar B) neither
A: A biological membrane has lipids as an essential component. It includes phospholipids and…
Q: Test for Unsaturation. Reagent’s Composition Observations: Test Samples Reaction with…
A: Fatty acids are carboxylic acids with a hydrocarbon chain ranging from 4 carbon to 36 carbons. The…
Q: C. TBARS Assay 1. In a test tube, mix 1 mL of the samples and 1 mL of thiobarbituric acid reagent.…
A: Sources of error can be defined as the factors which affect the accuracy and precision of an assay.…
Q: Which of the following statements is/are FALSE about Bradford assay? 1. Upon addition of the…
A: Bradford Assay is an accurate spectroscopic analytical method to measure the concentration of total…
Q: Proteins destined for the peroxisomes can be translocated in their functional shape. True False
A: Protein targeting is a biological process by which the cells localize the proteins in different…
Q: An uncompetitive inhibitor interacts with the enzyme•substrate complex to form a ternary complex…
A: Enzyme inhibition is a process by which the activity of an enzyme is altered. Inhibitors are…
Q: Cyt cb562 will form a tetramer in the presence of Zn+2 or in the absence of Zn+2, it will form a…
A: INTRODUCTION : Cyt cb562 - Cytochrome cb562 is a variant of an Escherichia coli four-helix bundle…
Q: is lapoamide involved in oxidation reduction..
A: INTRODUCTION : First of all there is no such biochemical name like Lapoamide(its incorrect) The…
Q: QUESTIONS: 1. Aside from carbohydrates, lipids and proteins, what other organic compounds are found…
A: DISCLAIMER FOR MULTIPLE Since you have asked multiple question, we will solve the first question…
Q: 1. Which of the following pathways of information flow has never been observed on Earth? chose all…
A: Note: Hi! Thank you for the question. We are authorized to answer one question at a time. Since you…
Q: phosphate. Contrast the properties of hexokinases I and IV with respect to oligomeric structure,…
A: Hexokinase is an enzyme that has the ability to transfer inorganic phosphate group from ATP to the…
Q: [Select] 1. Using hydrophobic interaction chromatography, the protein that will be eluted last is 2.…
A: Proteins are composed of amino acids, which are bound together by peptide linkage. Amino acids…
Q: Choose below the correct order of the oxygen binding proteins from lowest to highest affinity for…
A: Hemoglobin is a tetrameric oxygen transport protein found in erythrocytes, on the contrary,…
Q: 5. (a) Hexokinase IV is known as glucokinase (GCK) and is a central metabolic enzyme that…
A: Hexokinases: An enzyme that phosphorylates hexoses (six-carbon sugars) to produce hexose phosphate.…
Q: Why is the binding of oxygen to hemoglobin cooperative while the binding of oxygen to myoglobin is…
A: Hemoglobin has 4 subunits, 2 alpha subunits, and 2 beta subunits. These 4 subunits collectively make…
Q: Briefly describe the role and location of each cofactor/coenzyme involved in the pyruvate…
A: Pyruvate produced by glycolysis. Pyruvate Dehydrogenase Complex is a mitochondrial multiple enzyme…
Q: Triose phosphate isomerase In a key reaction of glycolysis, dihydroxyacetone phosphate (DHAP) is…
A: Given Values: ∆G°=7.5 kJ/mol or 7500 J/molT = 37°C or 310 KR = 8.314
Q: Galactose 1-phosphate + UDP-glucose → UDP-galactose + glucose 1-phosphate Which pairing correctly…
A: Glycolysis is the metabolic pathway through which one 6 carbon glucose is converted into two 3…
Q: 3. In the experiment shown below, researchers looked at the effects of glucose-free medium on…
A: Glutamate is an amino acid that is synthesized from glutamine and through the transamination of…
Q: Define optimum pH and temperature of an enzyme. 2. How do changes in pH and temperature affect the…
A: Enzymes are biological catalysts that increases the rate of biochemical reactions. Most enzymes are…
Q: Ecol sticky end Putl SAATTCCTGCAGAAGCTT CITAA Synthetic polyliner Hindi N&CL Plasmid cloning vector…
A: The Enzyme Commission Number (EC Number) is a numerical classification for enzymes which is based on…
Q: . Explain the assembly of an RNA Pol II basal transcription initiation complex.
A: Transcription is the synthesis of RNA from DNA that is the process of copying the information of a…
Q: Indicate whether each of the following descriptions concerning the molecule sphingosine is true or…
A: Phospholipids are compound lipids composed of fatty acids, alcohol, phosphate group, and nitrogenous…
Q: What amino acid(s) is(are) deemed to be present when a positive reaction is obtained upon heating in…
A: The lead acetate test is a qualitative test for sulfur-containing amino acids. The degradation of…
Step by step
Solved in 5 steps with 4 images
- Which one of the following types of bond is principally responsible for holding the α-helix shape of a protein secondary structure : A) peptide B) disulfide C) hydrogen D)ionicProteins have complex three-dimensional structures. These polymers are held into these specific shapes with a variety of intermolecular forces, covalent bonds, and ionic bonds. Alpha-helices and beta-sheets are examples of A) primary structure B) secondary structure C) tertiary structure D) quaternary structureThe substitution of one amino acid for another in a polypeptide chain can affect the __________ of the resulting protein. A) primary structure B) secondary structure C) tertiary structure D) quaternary structure E) all levels of protein structure can be affected by substituting one amino acid for another.
- Peptide bonding between amino acids in a polypeptide is an example of which type of chemical bonding? a) electrostatic b) covalent c) ionic d) hydrogenThe tertiary structure of a protein is the : A) overall protein structure resulting from the aggregation of two or more polypeptide subunits. B) order in which amino acids are joined in a polypeptide chain. C) bonding together of several polypeptide chains by weak bonds. D)organization of a polypeptide chain into an α helix or β pleated sheet. E)unique three-dimensional shape of the fully folded polypeptide.Peptide bonds cannot rotate. This is because: a) the amino acid side chains are too bulky to allow this. B) Internal hydrogen bonding hinders rotation. C) interaction with water molecules hinders rotation D) the peptide bond has considerable double bond character Polypeptide chains prefer the trans conformation. This is because: a) This distances hydrophilic groups from hydrophobic groups b) this minimizes crowding of side chains c) This brings hydrophilic groups in contact with water molecules d) This allows proteins to fold more easily Ramachandran plots indicate that protein conformation is largely a function of: a) hydrophobicity b) number of amino acids c) torsion angles d) arrangement of prosthetic groups
- Which of the following statements is true about the quaternary structure of a protein? A) The quaternary structure of a protein is based on how polypeptide subunits interact with one another. B) The quaternary structure of a protein is affected by hydrogen bonds. C) The quaternary structure is the overall shape of a protein. D) The quaternary structure is driven by a- helices and B-pleated sheets. E) The quaternary structure is found in all proteins.Which of the following is not one of the states of lipids?a) Para crystalline stateb) Liquid ordered statec) Liquid disordered stated) Crystalline stateFor each of the following pairs of amino acids, identify the strongest type of intermolecular forces involved when the side chains interact. Explain in terms of the chemical structures of the amino acid side chains. Use the following list: disulfide bridge, hydrogen bonding, hydrophobic interaction, or salt bridge. a) D and H b) C and C c) L and A d) G and S e) N and T
- What maintains the secondary structure of protein: A) peptide bond. B) Hydrogen bonds between the amino group of one peptide bond and the carboxyl group of another peptide bond. C) Hydrogen bonds between the R group of one amino acid and the carboxyl group og another peptide bond. D) disulfide bonds. E) Hydrophobic interactions.1. Which one of the following is NOT an important functional group or linkage in biomolecules? A) Phosphodiester B) Hemiketal C) Thiol D) Lipid E) PhosphoanhydrideUsing the appropriate chemical structures describe the monomers and polymers for each of the following macromolecules; a) fats b) nucleic acid