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23. Which factor has NOT been shown to play a role in determining the specificity of...
10. A good transition-state analog: A) binds covalently to the enzyme. B) binds to the enzyme...
10. A good transition-state analog: A) binds covalently to the enzyme. B) binds to the enzyme more tightly than the substrate. C) binds very weakly to the enzyme. D) is too unstable to isolate. E) must be almost identical to the substrate. 11. Which factor bas NOT been shown to play a role in determining the specificity of protein kinases? A) disulfide bonds near the phosphorylation site B) primary sequence at phosphorylation site C) protein quaternary structure D) protein tertiary...
1 through 5 please 1. Which level of protein structure is held together by hydrogen bonds...
1 through 5 please
1. Which level of protein structure is held together by hydrogen bonds only a) primary b) secondary c) tertiary d) quaternary 2. Which level of protein structure is held together by peptide bonds only a) primary b) secondary c) tertiary d) quaternary 3. Which level of protein structure is held together by R-group interactions? a) primary b) secondary c) tertiary d) quaternary " Which level of protein structure is likely to change when a substrate binds...
I got these multiple questions wrong, can anyone please help me why I got them wrong...
I got these multiple questions wrong, can anyone please help me why I got them wrong =( My answers are in bold, and were marked wrong 1. How do the two reagents used to separate peptide chains that are covalently linked via disulfide bonds function? Mercaptoethanol (oxidizes/reduces) the sulfurs and iodoacetate forms a (covalent/hydrophobic/ionic) interaction with them. 2. Differences at the PrP and the PrPSc proteins occur mainly at which protein structure level(s)? A Primary only B Secondary only C...
Determine whether the sentences are true or false 27-( ) The only acidic amino acid is...
Determine whether the sentences are true or false 27-( ) The only acidic amino acid is aspartic acid. 36-( ) The quaternary structure is physically very strong because many polypeptides are clustered together. 37-( ) The amino acid sequence consisting of I-V-V-F-V is judged to form a β strand. 38-( ) The amino acid sequence consisting of A-E-A-E-L-A-L-E is judged to form an α-helix. 39-( ) If the molecular weight of glycine is 75, the molecular weight of the peptide...
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....
Which of the following business factors does not play a role in determining a company's credit...
Which of the following business factors does not play a role in determining a company's credit rating? Select one: A. Industry characteristics B. Capital structure C. Management D. Profitability E. None of the above
What kinds of interactions are NOT part of tertiary protein structure? 3 . A) salt bridges...
What kinds of interactions are NOT part of tertiary protein structure? 3 . A) salt bridges In a hydrolysis reaction, B) hydrophilic interactions A. an acid reacts with an alcohol. C) disulfide bonds E. an este reacts with NaOH. C. anester reacts with H.O. D) peptide bonds D. an acid neutralizes a base. E) hydrophobic interactions E. water is added to markene. . All amino acids have chiral Carbon atoms except a. Val 6. Lys C. ASP d. Ala e....
10. The peptide shown has the amino acid sequence: A. Val-Ser-Ile-Glu-Lys B. Lys-Glu-Ile-Ser-Val C. Thr-Asp-Leu-Gln-Arg D....
10. The peptide shown has the amino acid sequence: A. Val-Ser-Ile-Glu-Lys B. Lys-Glu-Ile-Ser-Val C. Thr-Asp-Leu-Gln-Arg D. Val-Asp-Ile-Glu-Arg 11. Which of the following describes the entire three- dimensional structure of a single polypeptide? A. Secondary structure B. Quaternary structure C. Tertiary structure D. Primary structure 12. What is the primary driving force in the formation of protein tertiary structure? A. Energy released when additional ion pairs are formed. B. The exclusion of non-polar substances from aqueous solution. C. The formation of...
5. Which of the following molecules form complex structures linked by covalent bonds through Lys, HyLys,...
5. Which of the following molecules form complex structures linked by covalent bonds through Lys, HyLys, or His residues? A) Collagen B) Alpha keratin C) Hemoglobin D) Myoglobin E) Beta barrels 6. Which of the following correlates to the classic experiment demonstrating that reduced and denatured RNase A could refold into the native form? A) Disulfide bonds do not stabilize folded proteins B) Reducing agents denature proteins C) 1° structure can determine 3° structure D) Urea cleaves disulfide bonds E)...
lation stops when the ribosome A) Runs into a repressor protein B) Becomes stuck on an...
lation stops when the ribosome A) Runs into a repressor protein B) Becomes stuck on an operator sequence c) Reaches a stop codorn D) All of the above E) B and C 28) The numerical notation for the correct reading frame i.... A) 0 B) 1 C) -1 D) +1 E) -10 29) What is the role(s) of chaperone proteins (chaperonins)? A) They assist the ribosome in binding to the beginning of mRNA. B) They properly fold nascent proteins into...
10. A good transition-state analog: A) binds covalently to the enzyme. B) binds to the enzyme more tightly than the substrate. C) binds very weakly to the enzyme. D) is too unstable to isolate. E) must be almost identical to the substrate. 11. Which factor bas NOT been shown to play a role in determining the specificity of protein kinases? A) disulfide bonds near the phosphorylation site B) primary sequence at phosphorylation site C) protein quaternary structure D) protein tertiary...
1 through 5 please
1. Which level of protein structure is held together by hydrogen bonds only a) primary b) secondary c) tertiary d) quaternary 2. Which level of protein structure is held together by peptide bonds only a) primary b) secondary c) tertiary d) quaternary 3. Which level of protein structure is held together by R-group interactions? a) primary b) secondary c) tertiary d) quaternary " Which level of protein structure is likely to change when a substrate binds...
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....
What kinds of interactions are NOT part of tertiary protein structure? 3 . A) salt bridges In a hydrolysis reaction, B) hydrophilic interactions A. an acid reacts with an alcohol. C) disulfide bonds E. an este reacts with NaOH. C. anester reacts with H.O. D) peptide bonds D. an acid neutralizes a base. E) hydrophobic interactions E. water is added to markene. . All amino acids have chiral Carbon atoms except a. Val 6. Lys C. ASP d. Ala e....
10. The peptide shown has the amino acid sequence: A. Val-Ser-Ile-Glu-Lys B. Lys-Glu-Ile-Ser-Val C. Thr-Asp-Leu-Gln-Arg D. Val-Asp-Ile-Glu-Arg 11. Which of the following describes the entire three- dimensional structure of a single polypeptide? A. Secondary structure B. Quaternary structure C. Tertiary structure D. Primary structure 12. What is the primary driving force in the formation of protein tertiary structure? A. Energy released when additional ion pairs are formed. B. The exclusion of non-polar substances from aqueous solution. C. The formation of...
5. Which of the following molecules form complex structures linked by covalent bonds through Lys, HyLys, or His residues? A) Collagen B) Alpha keratin C) Hemoglobin D) Myoglobin E) Beta barrels 6. Which of the following correlates to the classic experiment demonstrating that reduced and denatured RNase A could refold into the native form? A) Disulfide bonds do not stabilize folded proteins B) Reducing agents denature proteins C) 1° structure can determine 3° structure D) Urea cleaves disulfide bonds E)...
lation stops when the ribosome A) Runs into a repressor protein B) Becomes stuck on an operator sequence c) Reaches a stop codorn D) All of the above E) B and C 28) The numerical notation for the correct reading frame i.... A) 0 B) 1 C) -1 D) +1 E) -10 29) What is the role(s) of chaperone proteins (chaperonins)? A) They assist the ribosome in binding to the beginning of mRNA. B) They properly fold nascent proteins into...
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