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Understand alpha helices and beta pleated sheets Question The coiling of an a-helix is maintained in...
Understand alpha helices and beta pleated sheets Question The coiling of an a-helix is maintained in...
Understand alpha helices and beta pleated sheets Question The coiling of an a-helix is maintained in position by which of the following bonds? Select the correct answer below: O hydrogen bonds between the oxygen atom in the carbonyl group in one amino acid and the hydrogen atom of the hydroxyl group in an R-group of another amino acid that is four amino acids farther along the chain O hydrogen bonds between the oxygen atom in the carbonyl group in one...
Understand alpha helices and beta pleated sheets Question Every helical turn in an a-helix has 3.6 amino acid residues....
Understand alpha helices and beta pleated sheets Question Every helical turn in an a-helix has 3.6 amino acid residues. Then, hydrogen bonds are formed between the oxygen atom in amino acid along the the carbonyl group in the first amino acid and the hydrogen atom in the amine group of the chain. Select the correct answer below: third second fourth fifth FEEDBACK MORE INSTRUCTION SUBMIT Content attribution
Understand alpha helices and beta pleated sheets Question How is it possible for the a-helix to have amino acids with b...
Understand alpha helices and beta pleated sheets Question How is it possible for the a-helix to have amino acids with bulky side chains while the B-pleated sheets cannot? Select the correct answer below: O The R groups in the a-helix stabilize the structure, while they interfere with the hydrogen bonds in a B-pleated sheet. The R groups are contained inside the a-helix structure, while they interfere with the hydrogen bonds in a B- pleated sheet. O The R groups lie...
Understand alpha helices and beta pleated sheets Question Which of the following statements is not true...
Understand alpha helices and beta pleated sheets Question Which of the following statements is not true about R groups in B-pleated sheet? a. The R groups of the peptide chain point outside. b. The R groups are attached to the carbons and extend above and below the folds of the pleat. c. The amino acids tend to have smaller R groups. Select the correct answer below: a and b a and c b and c only a FEEDBACK MORE INSTRUCTION...
Understand alpha helices and beta pleated sheets Question Which amino acid from the following list best...
Understand alpha helices and beta pleated sheets Question Which amino acid from the following list best fits the B-pleated sheet? Select the correct answer below: tryptophan alanine arginine lysine FEEDBACK MORE INSTRUCTION SUBMIT Content attribution
Identify the structural components of an amino acid and understand the chemical diversity of amino acids...
Identify the structural components of an amino acid and understand the chemical diversity of amino acids Question COO- HIN— -H CH2 COO- Aspartate In the amino acid aspartate, the highlighted CH2 - COO portion represents Select the correct answer below: O the amino group common to all amino acids O the carboxyl group common to all amino acids O the side chain that is unique to aspartate O the portion common to all amino acids a FEEDBACK P FEEDBACK MORE...
An αlpha- helix is formed by hydrogen bonds between: a. nonpolar and polar R groups. b....
An αlpha- helix is formed by hydrogen bonds between: a. nonpolar and polar R groups. b. positively charged and negatively charged R groups. c. the carbonyl oxygen and the amide nitrogen of neighboring amino acids. d. the carbonyl oxygen and the amide nitrogen of every fourth amino acid.
Identify the structural components of an amino acid and understand the chemical diversity of amino acids...
Identify the structural components of an amino acid and understand the chemical diversity of amino acids Question Coo- Anch H₂N-CH2 H2C CH Proline Proline's structure has a unique feature not found in other amino acids. What is it? Select the correct answer below: O Proline is chiral. O The amino group is part of the side chain. O Proline is positively charged. O Proline is achiral. P FEEDBACK MORE INSTRUCTION SUBMIT Content attribution Understand protonation and deprotonation of carboxyl and...
There are four amino acid residues between each turn of an alpha helix, because O hydrogen...
There are four amino acid residues between each turn of an alpha helix, because O hydrogen bonding between the carbonyl and amine groups is more stable at this distance. O amino acid residues need a certain amount of distance between then during the turn. O the polar amino acids are more attractive to the peptide bond at this distance. O None of the choices are correct.
1. There are a total of amino acids are called natural amino acids that are found...
1. There are a total of amino acids are called natural amino acids that are found in proteins. These according to the older Greek letter nomenclature system for designating carboxylic acid structures. 2. True/ False The alpha carbon is the carbonyl carbon of the carboxylic acid functional group of the amino acid. 3. Which of the following are functional groups in an amino acid? (choose all that apply) a. amine b. amide c. carbonyl d. carboxylic acid e. alcohol f....
Understand alpha helices and beta pleated sheets Question The coiling of an a-helix is maintained in position by which of the following bonds? Select the correct answer below: O hydrogen bonds between the oxygen atom in the carbonyl group in one amino acid and the hydrogen atom of the hydroxyl group in an R-group of another amino acid that is four amino acids farther along the chain O hydrogen bonds between the oxygen atom in the carbonyl group in one...
Understand alpha helices and beta pleated sheets Question Every helical turn in an a-helix has 3.6 amino acid residues. Then, hydrogen bonds are formed between the oxygen atom in amino acid along the the carbonyl group in the first amino acid and the hydrogen atom in the amine group of the chain. Select the correct answer below: third second fourth fifth FEEDBACK MORE INSTRUCTION SUBMIT Content attribution
Understand alpha helices and beta pleated sheets Question How is it possible for the a-helix to have amino acids with bulky side chains while the B-pleated sheets cannot? Select the correct answer below: O The R groups in the a-helix stabilize the structure, while they interfere with the hydrogen bonds in a B-pleated sheet. The R groups are contained inside the a-helix structure, while they interfere with the hydrogen bonds in a B- pleated sheet. O The R groups lie...
Understand alpha helices and beta pleated sheets Question Which of the following statements is not true about R groups in B-pleated sheet? a. The R groups of the peptide chain point outside. b. The R groups are attached to the carbons and extend above and below the folds of the pleat. c. The amino acids tend to have smaller R groups. Select the correct answer below: a and b a and c b and c only a FEEDBACK MORE INSTRUCTION...
Understand alpha helices and beta pleated sheets Question Which amino acid from the following list best fits the B-pleated sheet? Select the correct answer below: tryptophan alanine arginine lysine FEEDBACK MORE INSTRUCTION SUBMIT Content attribution
Identify the structural components of an amino acid and understand the chemical diversity of amino acids Question COO- HIN— -H CH2 COO- Aspartate In the amino acid aspartate, the highlighted CH2 - COO portion represents Select the correct answer below: O the amino group common to all amino acids O the carboxyl group common to all amino acids O the side chain that is unique to aspartate O the portion common to all amino acids a FEEDBACK P FEEDBACK MORE...
Identify the structural components of an amino acid and understand the chemical diversity of amino acids Question Coo- Anch H₂N-CH2 H2C CH Proline Proline's structure has a unique feature not found in other amino acids. What is it? Select the correct answer below: O Proline is chiral. O The amino group is part of the side chain. O Proline is positively charged. O Proline is achiral. P FEEDBACK MORE INSTRUCTION SUBMIT Content attribution Understand protonation and deprotonation of carboxyl and...
There are four amino acid residues between each turn of an alpha helix, because O hydrogen bonding between the carbonyl and amine groups is more stable at this distance. O amino acid residues need a certain amount of distance between then during the turn. O the polar amino acids are more attractive to the peptide bond at this distance. O None of the choices are correct.
1. There are a total of amino acids are called natural amino acids that are found in proteins. These according to the older Greek letter nomenclature system for designating carboxylic acid structures. 2. True/ False The alpha carbon is the carbonyl carbon of the carboxylic acid functional group of the amino acid. 3. Which of the following are functional groups in an amino acid? (choose all that apply) a. amine b. amide c. carbonyl d. carboxylic acid e. alcohol f....
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