A ________ plot describes which structures in a polypeptide are sterically possible and which are not...
A ________ plot describes which structures in a polypeptide are sterically possible and which are not based on the angles of rotation about the backbone Namide -Cα and Cα-Ccarbonyl bonds.
Homework Answers
answer : Ramachandran
explanation: this direct statement
A __Ramachandran______ plot describes which structures in a polypeptide are sterically possible and which are not based on the angles of rotation about the backbone Namide -Cα and Cα-Ccarbonyl bonds.
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A ________ plot describes which structures in a polypeptide are
sterically possible and which are not...
Review question label all the backbone bonds around which rotation is possible Он HN H3N N ОН S. ZI HZ
Review question label all the backbone bonds around which rotation is possible Он HN H3N N ОН S. ZI HZ
2. Given the molecule NPF -1, draw two possible Lewis structures and then choose which is...
2. Given the molecule NPF -1, draw two possible Lewis structures
and then choose which is better based on the rules. Determine the
Electron Pair Geometry. Determine the Molecular Geometry. What are
the types of bonds in the molecule? Is the molecule polar?
2. Given the molecule NPF-1, draw two possible Lewis structures and then choose which is better based on the rules. Determine the Electron Pair Geometry. Determine the Molecular Geometry. What are the types of bonds in the...
Question 5. Which of the following pairs of bonds within a peptide backbone show free rotation...
Question 5. Which of the following pairs of bonds within a peptide backbone show free rotation around both bonds? A) Ca-C and N-C B) C-O and N-C C) C-O and N-Ca D) N-C and Ca-C E) N-Ca and N-C Question 6. In the diagram below, the plane drawn behind the peptide bond indicates the: A) absence of rotation around the C-N bond because of its partial double-bond character. B) plane of rotation around the C-N bond. region of steric hindrance...
Which of the following is correct concerning a peptide backbone? Choose one: O A. The peptide...
Which of the following is correct concerning a peptide backbone? Choose one: O A. The peptide bond allows for free rotation due to its single bond character. OB. A Ramachandran plot shows the allowable and V angles for a peptide. O C. The torsional angle between the Ca and the Rgroup is called “ (phi). O D. The torsional angle between the amide nitrogen and the Ca is called (psi).
Question 10 (4 points) Although all protein structures are unique, there are common structural building blocks...
Question 10 (4 points) Although all protein structures are unique, there are common structural building blocks that are referred to as regular secondary structures, Some proteins have alpha-helices, some have beta-sheets, and still others have a combination of both. What makes it possible for proteins to have these common structural elements? 12 15 a) the hydrophobic-core interactions. b) hydrogen bonds that form along (alpha helices) or between (beta sheets) polypeptide backbones. c) side-chain interactions d) specific amino acid sequences. 7...
Which of the following statements are true concerning NO2-? true false There are two resonance structures for...
Which of the following statements are true concerning NO2-? true false There are two resonance structures for NO2-. true false One of the nitrogen-oxygen bonds is longer than the others. true false There are two sigma bonds in NO2-. true false The central nitrogen atom is sp2 hybridized. true false The bond angles about the central nitrogen atom are about 120o.
4) In a polypeptide, which bond cannot rotate because of its partial double bond character? The...
4) In a polypeptide, which bond cannot rotate because of its partial double bond character? The Cα-R group bond The Namide-Cα bond The Ccarbonyl-Cα bond The Ccarbonyl-Namide bond All bonds are able to rotate freely 5) Which of the following best represents the backbone arrangement of two peptide bonds? A) C—N—Cα—Cα—C—N B) Cα—N—C—C—N—Cα C) Cα—N—Cα—C—Cα—N—Cα—C D) Cα—Cα—C—N—Cα—Cα—C E) Cα—C—N—Cα—C—N 6. Describe the predominant character of the following polypeptides using the following options Nonpolar Polar Uncharged Polar Positively charged Polar Negatively...
2) At a pH greater than that of its isoelectric point, the structure of glycine is...
2) At a pH greater than that of its isoelectric point, the structure of glycine is a) H-CH-COOH b) H-CH-C00- c) H-CH-CO e) H-CH-COO COOH b) H-CH-C00- c) H-CH-COOH d) H-CH-COO NH2 NH2 NH2 NH3 NH 3) Which of the following structures can be destroyed by the dena structures can be destroyed by the denaturation of a protein? a) Only primary and tertiary structures of a protein. b) Only secondary, tertiary y secondary, tertiary, and quaternary structures of a protein....
Pre-Workshop Formal Charge and VSEPR Worksheet Consider the following Lewis Structures for sand, which is silicon...
Pre-Workshop Formal Charge and VSEPR Worksheet Consider the following Lewis Structures for sand, which is silicon dioxide: :0-Si O: O-SI- Structure B Structure A 1. (0.5 pts) What is the total number of electrons allowed in the Lewis structure for SiO2? Do both of the above Lewis structures have the correct number of electrons pictured? 2. (0.5 pts) If two different Lewis structures are possible for a molecule, does the best structure have the fewest or the most formal charges?...
Which of the following best describes why invertebrates isn't considered a scientifically valid word when classifying...
Which of the following best describes why invertebrates isn't considered a scientifically valid word when classifying animals? A. The term invertebrates describes all animals, so is not helpful in classifying organisms within the animal kingdom. B. The term invertebrates is unhelpful because all animals possess some sort of backbone or notochord. C. The term invertebrates classifies animals haphazardly based on a missing characteristic rather than a common one. D. The term invertebrates is too vague, since all animals evolved from...
Review question label all the backbone bonds around which rotation is possible Он HN H3N N ОН S. ZI HZ
2. Given the molecule NPF -1, draw two possible Lewis structures
and then choose which is better based on the rules. Determine the
Electron Pair Geometry. Determine the Molecular Geometry. What are
the types of bonds in the molecule? Is the molecule polar?
2. Given the molecule NPF-1, draw two possible Lewis structures and then choose which is better based on the rules. Determine the Electron Pair Geometry. Determine the Molecular Geometry. What are the types of bonds in the...
Question 5. Which of the following pairs of bonds within a peptide backbone show free rotation around both bonds? A) Ca-C and N-C B) C-O and N-C C) C-O and N-Ca D) N-C and Ca-C E) N-Ca and N-C Question 6. In the diagram below, the plane drawn behind the peptide bond indicates the: A) absence of rotation around the C-N bond because of its partial double-bond character. B) plane of rotation around the C-N bond. region of steric hindrance...
Which of the following is correct concerning a peptide backbone? Choose one: O A. The peptide bond allows for free rotation due to its single bond character. OB. A Ramachandran plot shows the allowable and V angles for a peptide. O C. The torsional angle between the Ca and the Rgroup is called “ (phi). O D. The torsional angle between the amide nitrogen and the Ca is called (psi).
Question 10 (4 points) Although all protein structures are unique, there are common structural building blocks that are referred to as regular secondary structures, Some proteins have alpha-helices, some have beta-sheets, and still others have a combination of both. What makes it possible for proteins to have these common structural elements? 12 15 a) the hydrophobic-core interactions. b) hydrogen bonds that form along (alpha helices) or between (beta sheets) polypeptide backbones. c) side-chain interactions d) specific amino acid sequences. 7...
2) At a pH greater than that of its isoelectric point, the structure of glycine is a) H-CH-COOH b) H-CH-C00- c) H-CH-CO e) H-CH-COO COOH b) H-CH-C00- c) H-CH-COOH d) H-CH-COO NH2 NH2 NH2 NH3 NH 3) Which of the following structures can be destroyed by the dena structures can be destroyed by the denaturation of a protein? a) Only primary and tertiary structures of a protein. b) Only secondary, tertiary y secondary, tertiary, and quaternary structures of a protein....
Pre-Workshop Formal Charge and VSEPR Worksheet Consider the following Lewis Structures for sand, which is silicon dioxide: :0-Si O: O-SI- Structure B Structure A 1. (0.5 pts) What is the total number of electrons allowed in the Lewis structure for SiO2? Do both of the above Lewis structures have the correct number of electrons pictured? 2. (0.5 pts) If two different Lewis structures are possible for a molecule, does the best structure have the fewest or the most formal charges?...
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