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View desktop site. -A is wrong because that is the definition of the primary structure of a protein. While the arrangement is made up of secondary structure, the overall motif itself can be considered supersecondary or possibly even tertiary, though its components are secondary structures. © 2003-2021 Chegg Inc. All rights reserved. This structure resembles a coiled spring and is secured by hydrogen bonding in the polypeptide chain. a) Protein structures from secondary to quaternary are maintained by noncovalent forces b) They include electrostatic interactions but not van der Waals forces, and hydrogen bonding c) Electrostatic interactions are a significant stabilizing force in a protein structure Protein domains on the other hand, do. The two most common secondary structural elements are alpha helices and beta sheets, though beta turns and omega loops occur as well. -Secondary structure is the regular folding of the polypeptide chain due to hydrogen bonding between amino acid back bones. hydrogen bonding with the backbone which of the following proteins has an extended helix secondary structure? secondary structure : interactions between more than one amino acid chain in a protein. These polypeptide chains usually fold due to the interaction between the amine and carboxyl group of the peptide link. 3 dimensional structure of a protein It is the biologically active conformation Primary structure of protein determines the tertiary structure All of these 9. Which of the following most accurately lists elements of any protein’s primary, secondary, tertiary, and quaternary structure, in that order? 7. α-helix and p-pleated sheet of Secondary structures: The regular folding of regions of the polypeptide chain is the feature of the secondary level structure of protein. Beta sheets can be formed in parallel and antiparallel configurations. Disulfide linkage IV. which of the following is an illustration that protein tertiary structure is not strictly dependent on protein secondary structure and vice versa? - D is wrong because that is a description of the function of peptide bonds, - E is wrong because it describes not secondary structure but a scleroprotein which is one of two main classes of quartnery structures for proteins, It's "E-a fibrous shape" (b-spiral is the type of the secondary structure and cause that the fibre is so flexible and strong just like is the silk). Uploaded by: heyimcajun Question is ⇒ Secondary structure in protein refers to, Options are ⇒ (A) linear sequence of amino acids joined together by peptide bond, (B) three dimensional arrangement of all amino acids in polypeptide chain, (C) regular folding of regions of the polypeptide chain, (D) protein made up of more than one polypeptide chain, (E) , Leave your comments or Download question paper. B. I and III Explanation: Protein structures: The primary structure of protein is hierarchys basic level, and is the particular linear sequence of amino acids comprising one polypeptid, anatomy and physiology questions and answers. How could possibly someone think humans used to be monkeys? B. Interactions between the side chains in amino acids form tertiary structure. D. Which of the following is a secondary protein structure A α helix B Ser Met Ala from CHEM 302 at Western Illinois University Terms There are two types of secondary structures observed in proteins. & An alpha helical coiled coil c. An open parallel beta sheet composed of hydrophilic residues d. An open antiparallel beta sheet composed of hydrophobic residues e. Tertiary protein structure emerges when there is more than one peptide chain in a protein. Polypeptide chains in a beta sheet are held together by hydrogen bonds. There are four levels to protein structure. Join Yahoo Answers and get 100 points today. C. The two types of primary structure are α helices and β pleated sheets. The length of the peptide bond is between these, at 1.28Å. I. Alpha-helix II. why is the gallbladder located under the liver in pig? Are p-gp inhibitors part of the distribution or elimination process? Cops open fire during standoff with swimming suspect, Buzzer-beater stuns UCLA, sends Gonzaga to title game, Baylor advances to NCAA tournament championship, Ken Burns: People making lots of money off ‘big lie’, Norton landed breakout role after DiCaprio passed. Tertiary structure is the overall shape of the protein subunit, caused by more distant interactions. The side-chain substituents of the amino acid groups in an α-helix extend to the outside. helix salt bridges disulfide bond hydrophobic interactions Ser-Met-Ala-Gly-lle Get more help from Chegg Get 1:1 help now from expert (b) The ability of peptide bonds to form intramolecular hydrogen bonds is important to secondary structure. The α-helixis a right-handed coiled strand. Bromelain IV. A. March 22, 2021 by Answerout Here is the answer for the question – In proteins, secondary, tertiary, and quaternary levels of structure depend on primary structure. 1) Which Of The Following Is Considered As Secondary Structure Of Protein? 2. U.S. has long favored cars. See the answer. As mentioned, the C-N bond is partly double bonded and so does not rotate. quaternary structure : chain of amino acids. The helixes, sheets, and loops are called the "secondary structure" of the protein. Globular III. Protein secondary structure is the three dimensional form of local segments of proteins. I. alpha-helix II. 1. The secondary structure of collagen is distinguished by A)single α helix strands. Which of the following is a secondary protein structure? Q 37 . the two most common are the alpha helix and the beta sheet structures. These foldings are commonly of two types – α-helix and β-pleated sheet. tertiary structure of protein? The bond length of a normal C-N bond is 1.49Å(angstroms), while the length of a normal C=N bond is 1.28Å. ? Stretches or strands of proteins or peptides have distinct, characteristic local structural conformations, or secondary structure, dependent on hydrogen bonding. The term secondary structure refers to the interaction of the hydrogen bond donor and acceptor residues of the repeating peptide unit. This is due to the C-N bond resonating between single and double bonded forms, as shown above. The non polar or hydrophobic folding, alpha helices and beta pleated sheets stabilize the secondary structures of a protein. The two most important secondary structure of proteins, the alpha helix, and the beta sheet were predicted by the American chemist Linus Pauling in the early 1950s. Related questions. One type is the alpha (α) helix structure. | Which of the following is true of protein structure? secondary structure is associated with which of the following? Hydrophobic interaction, I. Lecithin    II. Biotin   V. Albumin, Answer: 1. Which of the following statements is true regarding protein structure? proteins are composed of amino acid monomers. Get your answers by asking now. Which of the following secondary structures is most likely to be found in a membrane-embedded portion of a protein Select one: a. Pectin    III. tertiary structure : 3D structure due to interactions of R groups on amino acids. Motif's do not necessarily have a defined function across different proteins. A protein’s secondary structure is whatever regular structures arise from interactions between neighboring or near-by amino acids as the polypeptide starts to fold into its functional three-dimensional form. The amino acids in a protein form hydrogen bonds with each other. The two main types of secondary structure are the α-helix and the ß-sheet. Which of the following statement is not true about secondary structure of protein ? Fibrous. What is the special mechanism used to replicate chromosome ends? B)double α helix strands. Two different folding points exist. Primary is encoded in DNA. Do Covid vaccines create specific antibodies which dominate the body's natural non-specific antibodies in a way that could cause future harm? Secondary structure, which includes alpha-helices and beta-pleated sheets, is the local three-dimensional shape created by hydrogen bonding. Country star feels major pressure to lose weight, Sickly black bears acting friendlier around humans, Celebs pray for famed rapper following reported OD, NCAA tourney coach won't apologize for profane talk, Possible virus exposure at NCAA tourney investigated. What terrestrial vertebrate lost its digits but kept their limb [no snakes]? D. The main difference between primary secondary and tertiary structure of protein is that the primary structure of a protein is linear and the secondary structure of a protein can be either an α-helix or β-sheet whereas tertiary structure of a protein is globular.. Primary, secondary, tertiary, and quaternary are the four structures of proteins found in nature. A. Secondary structures arise as H bonds form between local groups of amino acids in a region of the polypeptide chain. Which of the following is a secondary protein structure? C. Secondary protein structures involve hydrogen bonding between amine and carboxyl groups. what is ex-vivo protein binding and how does it work on drug distribution? Secondary Structure refers to the coiling or folding of a polypeptide chain that gives the protein its 3-D shape. These are called phi and psi. Q 28 . Related questions. Which of the following is not correct about the stabilizing Forces? Beta-sheet IV. I. Ionic bond   II. A)α helix B)Ser-Met-Ala-Gly-Ile C)disulfide bond D)salt bridges E)hydrophobic interactions. option A must be the answer as Random coils are not part of the protein secondary structures and they have normal peptide sequence as in native protein, usually formed when denatured. Privacy -Secondary structure is the regular folding of the polypeptide chain due to hydrogen bonding between amino acid back bones. You can sign in to vote the answer. A single extended beta strand b. Secondary involves interactions within the protein. Correct answers: 1 question: Which of the following is an illustration that protein tertiary structure is not strictly dependent on protein secondary structure and vice versa? Can Biden change that? -C is wrong because that is the definition of the tertiary structure of a protein. The next level of protein structure, secondary structure, refers to local folded structures that form within a polypeptide due to interactions between atoms of the backbone. A supersecondary structure is a compact three-dimensional protein structure of several adjacent elements of a secondary structure that is smaller than a protein domain or a subunit. The most common amino acid in beta bend is cysteine glycine serine methionine 10. Protein Secondary Structure: α-Helices and β-Sheets In the following we will focus on the general aspects of protein secondary structure. Still have questions? A perfect helix structure (covered later) needs both phi (Φ) and psi (Ψ) to be at an angle of about -60 d… How to work out how effective something is in percentage (explained below). Fibrous. How do you think about the answers? Explore answers and all related questions . a) primary b) secondary c) tertiary d) quaternary The answer is D, quaternary. answer choices. primary structure : folded amino acid chains due to hydrogen bonds. Secondary structures are formed by multiple polypeptide chains. 2) Which of the following is possible force that stabilizes Which of the following most accurately lists elements of any protein’s primary, secondary, tertiary, and quaternary structure, in that order? (The backbone just refers to the polypeptide chain apart from the R groups – so all we mean here is that secondary structure does not involve R group atoms.) Beta sheets comprise two or more beta strands. A)α-helix B)Ser-Met-Ala-Gly-Ile C)disulfide bond D)salt bridges E)hydrophobic interactions. Hydrogen bond   III. Explore answers and all related questions . The bonds often occur in two predictable patterns, called helixes and sheets. I. alpha-helix     II. Supersecondary structures can act as nucleations in the process of protein folding . B. Peptide bonds join the amine group on one amino acid with the R group of another amino acid. (a) The alpha helix, beta pleated sheet and beta turns are examples of secondary structure of protein. Globular    III. Which of the following is a secondary protein structure? The bonds help stabilize the protein. The organization and frequency of these two structures in a protein's overall 3-dimensional shape is called the protein's secondary structure. 1) Which of the following is considered as secondary structure of protein? Secondary Structures in a Real Protein One type of protein that clearly shows both an alpha helix and a beta pleated sheet is a zinc finger protein, which helps regulate DNA expression in a cell's nucleus. Segments which aren't bonded in one of these patterns are called "loop". The … 1) Which of the following is considered as secondary structure Which of the following statements are true regarding quaternary structure of proteins The two most important secondary structures of proteins, the alpha helix and the beta sheet, were predicted by the American chemist Linus Pauling in the early 1950s. The Correct Answer is Amino acid sequence, hydrogen bonding between backbone groups, overall shape of a single … Which R group would most likely be found in a hydrophobic area of the tertiary structure of a globular protein? Beta sheets are polypeptide chains connected by hydrogen bonds and are made up of two or more beta strands. Is passive diffusion on drugs or molecules in absorption account for the same in distribution? of protein? Beta-sheet     IV. 11.Which of the following levels of protein structure is determined by interactions of more than one polypeptide chain? Hydrogen bonds form between the oxygen of each C=O bond in the strand and the hydrogen of each N-H group four amino acids below it in the helix.

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