Which of the following is true of secondary structure in protein folding? Pick ALL that apply.
A. |
It involves hydrogen bonding. |
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B. |
It involves the side chains. |
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C. |
It involves hydrophobic interactions. |
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D. |
It results in alpha helicies with the side chains hidden inside the helix. |
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E. |
It results in beta-pleated sheets with side chains sticking out of the plain of the sheet. |
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F. |
It involves the peptide backbone. |
Which of the following is true of secondary structure in protein folding? Pick ALL that apply....
24. The _______ of amino acids in a protein is referred to as its primary structure. A) twisting B) sequencing C) folding D) none of these 25. The structure of a protein is most important because the _______ of the amino acids determines its overall shape, function and properties. A) primary, twisting B) primary, sequencing C) secondary, twisting D) secondary, folding E) none of these 26. The secondary structure of a protein is due to_______ between amino acid residues. A) hydrophobic interactions B) hydrogen bonding...
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 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
Which of the following is true about proteins? a. Peptides linkages are made between the side chain and the carboxyl group. b. Hydrogen bonding between the NH and CEO of the backbone results in only alpha helices! c. Electrostatic interactions between the NH and C=O of the backbone results in only beta sheets. d. Quaternary structures of proteins involve multiple peptide chains interacting together.
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...
Question 1 The protein in the diagram is (circle all that apply): Group of answer choices a) a peripheral membrane protein b) an integral membrane protein c) a lipid anchored protein Question 2 The protein shown in the diagram could potentially function as (circle all that apply): Group of answer choices a) a receptor b) a transmembrane anchor c) a pore or channel Question 3 The protein shown in the diagram has which of the following (choose all that apply)?...
1) Select all that apply. Globular proteins: a)are found in hair and wool. b)include myoglobin and collagen. c)are usually water soluble. d)aggregate in aqueous media. e)are often made of β-pleated sheet and α-helix sections wrapped into compact structures. 2) Select all that apply. The Bohr effect: a)depends on the atomic orbital structure of hydrogen. b)can be summarized as a reduction in the oxygen affinity of hemoglobin with decreasing pH. c)is explained by the protonation of key amino acids, including the...
The type of bond that is most important in maintaining secondary structure of a protein is disulfide bridges hydrogen bonding between R groups hydrogen bonding within the backbone salt bridges hydrophobic interactions metal ion coordination QUESTION 2 A glycerophospholipid with the phosphate ester group bonded to ethanolamine would be classified as a cephalin lecithin sphingomyelin cerebroside ganglioside
QUESTION 7 Which of the following does not cause a protein to denature? O A heat 0 B. pH o detergent D. None of the above QUESTION 8 Repeating structural motifs, which make up secondary structures, such a alpha helices and beta sheets, are predominantly formed as a result of A hydrophobic interactions B. peptide bonds oC electrostatic interactions D. intramolecular hydrogen bonding QUESTION 9 Hydrophobic interactions could occur be Avaine and a nine B. aspartate and argnine C glutamine...
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....