Homework Answers
a) These are hydrogen bonds formed between hydrogen and oxygen species.
b) These bonds are non-covalent bonds as there are no sharing of electrons
c) These are transient or weak interactions. They can breakup easily compared to covalent bonds.
d) These are the backbone hydrogen bonds and are crucial for stability of proteins.
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5. Secondary structure (B-sheet): The image below is of a polypeptide in secondary (2)...
please answer 4. Secondary structure (a-helix): The image below is of a polypeptide in secondary (2)...
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4. Secondary structure (a-helix): The image below is of a polypeptide in secondary (2) structure level of protein folding. Specifically it is of an a-helix. Use the image on the left to answer the questions a-e below. The image on the right is to help with question "f' only. a. Name the specific bond/interaction indicated by the dotted lines. b. Is this bond/interaction covalent or non-covalent? c. Is this bond/interaction permanent or transient? d. What parts of the...
pls answer 6 and 7 6. Secondary structure (turn): The image below is of a polypeptide...
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answer 6 and 7
6. Secondary structure (turn): The image below is of a polypeptide in secondary (20) structure level of protein folding. Specifically it is of a turn. Turns vary in length. The shorter the turn the more drastic the angle changes. The longer the turn, the more gradual the angles needed. a. Name the specific bond/interaction indicated by the dotted lines. b. Is this bond/interaction covalent or non-covalent? Is this bond/interaction permanent or transient? d. What parts...
please answer 8. Quaternary structure: The image below is of a polypeptide in quaternary (4°) structure...
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8. Quaternary structure: The image below is of a polypeptide in quaternary (4°) structure level of protein folding. The image to the left is of hemoglobin. It is composed of four separate polypeptide chains indicated by the color differences. The image on the right indicates the backbone items as a ribbon (or line), while the side chains are chemically drawn. a. Name the specific bond/interaction indicated by the: i. Letter A ii. Letter B iii. Letter C iv....
Which interaction holds the a-helix and the B-pleated sheet into its unique folding pattern? hydrogen bonding...
Which interaction holds the a-helix and the B-pleated sheet into its unique folding pattern? hydrogen bonding between nitrogens and oxygens in the polypeptide backbone hydrogen bonding between serines (-CH2OH) covalent bonding between cysteines (-CH2SH) ionic bonding between acidic and basic amino acid side chains hydrophilic interactions
The type of bonding that maintains the secondary structure in a protein is the
The type of bonding that maintains the secondary structure in a protein is theA) Hydrogen bonds between the carbonyl and amino groups of the backboneB) Covalent bond between the carbonyl and amino groups of the amino acidsC) Hydrogen bonds between two amino acidsD) Disulfide bonds that hold two polypeptide chains togetherE) Hydrogen bonds between two amino groups
1. Amino acids are considered to be either hydrophobic or hydrophilic as described by the relative...
1. Amino acids are considered to be either hydrophobic or hydrophilic as described by the relative polarity of their side chain. Consider a folded protein in an aqueous environment; where would the hydrophobic amino acids likely be found? -Tucked away in the middle of the folded protein -Randomly distributed throughout the protein -Exposed on the exterior surface of the folded protein 2. All proteins exhibit a primary, secondary, and tertiary structure, but not all proteins exhibit a quaternary structure. Describe...
which of the following is not a way in which amino acid structure in sequence might...
which of the following is not a way in which amino acid structure in sequence might affect the properties of a protein a) Amino acid side chains form peptide bonds with each other causing the molecule to twist into a secondary structure b) Amino side chains interact with each other causing polypeptides to bend into a tertiary structure c) Hydrogen bonding between every fourth amino acid results in the formation of a coil called an a helix d) Hydrogen bonding...
Which of the following is true of secondary structure in protein folding? Pick ALL that apply....
Which of the following is true of secondary structure in protein folding? Pick ALL that apply. A. It involves hydrogen bonding. B. It involves the side chains. C. It involves hydrophobic interactions. D. It results in alpha helicies with the side chains hidden inside the helix. E. It results in beta-pleated sheets with side chains sticking out of the plain of the sheet. F. It involves the peptide backbone.
26. Which of the following classification does not match the amino acid side chain A) Contains an basic group/ lysi...
26. Which of the following classification does not match the amino acid side chain A) Contains an basic group/ lysine B) It is polar C) Forms disulfide bond/ cysteine D) Forms hydrogen bonds with neighbors/ alanine serine 27. All amino acids found in proteins are L-amino acids EXCEPT the achiral. A) glutamate B) Lysine C) glyeine D) Alamine 28. The plH at which the positive and negative charges of an amino acid balance each ofher is called the A) isotonic...
What happens when a primary structure forms a secondary structure? Match the words in the left...
What happens when a primary structure forms a secondary structure? Match the words in the left column to the appropriate blanks in the sentences on the right. Make certain each sentence is complete before submitting your answer. Terms may be used once, more than once, or not at all. Reset Help carboxylic acid a helix When atoms in the backbone of a protein or peptide form within a single or between chains, a secondary structure results. The two most common...
please answer
4. Secondary structure (a-helix): The image below is of a polypeptide in secondary (2) structure level of protein folding. Specifically it is of an a-helix. Use the image on the left to answer the questions a-e below. The image on the right is to help with question "f' only. a. Name the specific bond/interaction indicated by the dotted lines. b. Is this bond/interaction covalent or non-covalent? c. Is this bond/interaction permanent or transient? d. What parts of the...
pls
answer 6 and 7
6. Secondary structure (turn): The image below is of a polypeptide in secondary (20) structure level of protein folding. Specifically it is of a turn. Turns vary in length. The shorter the turn the more drastic the angle changes. The longer the turn, the more gradual the angles needed. a. Name the specific bond/interaction indicated by the dotted lines. b. Is this bond/interaction covalent or non-covalent? Is this bond/interaction permanent or transient? d. What parts...
please answer
8. Quaternary structure: The image below is of a polypeptide in quaternary (4°) structure level of protein folding. The image to the left is of hemoglobin. It is composed of four separate polypeptide chains indicated by the color differences. The image on the right indicates the backbone items as a ribbon (or line), while the side chains are chemically drawn. a. Name the specific bond/interaction indicated by the: i. Letter A ii. Letter B iii. Letter C iv....
Which interaction holds the a-helix and the B-pleated sheet into its unique folding pattern? hydrogen bonding between nitrogens and oxygens in the polypeptide backbone hydrogen bonding between serines (-CH2OH) covalent bonding between cysteines (-CH2SH) ionic bonding between acidic and basic amino acid side chains hydrophilic interactions
26. Which of the following classification does not match the amino acid side chain A) Contains an basic group/ lysine B) It is polar C) Forms disulfide bond/ cysteine D) Forms hydrogen bonds with neighbors/ alanine serine 27. All amino acids found in proteins are L-amino acids EXCEPT the achiral. A) glutamate B) Lysine C) glyeine D) Alamine 28. The plH at which the positive and negative charges of an amino acid balance each ofher is called the A) isotonic...
What happens when a primary structure forms a secondary structure? Match the words in the left column to the appropriate blanks in the sentences on the right. Make certain each sentence is complete before submitting your answer. Terms may be used once, more than once, or not at all. Reset Help carboxylic acid a helix When atoms in the backbone of a protein or peptide form within a single or between chains, a secondary structure results. The two most common...
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