Homework Answers
H bonding is most directly involved in getting a permanent
wave.
Thus, the option B is correct.
Sometimes disulfide bonds are also involved.
Thus, the option D is also correct.
These two interactions are responsible for the double helix structure of DNA..
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18. Which type of bond or interaction is most directly involved in getting a permanent wave?...
A peptide bond between two amino acids is what type of functional group? Ketone O Ester...
A peptide bond between two amino acids is what type of functional group? Ketone O Ester Amide O Disulfide Aldehyde The tertiary structure of a proteins is NOT held together by which type of bond/interaction? Hydrogen bond Electrostatic interactions Hydrophobic interactions Peptide bond Disulfide bonds
11) Which of the following CAN NOT be directly involved in the foiding of a protein...
11) Which of the following CAN NOT be directly involved in the foiding of a protein trom ts secondary tertiary structure? A) Hydrogen bond B) Peptide bond C) Hydrophobic interaction D) Disulfide covalent bond E) lonic interaction 12) Which type of bond links one carbohydrate to the next one in a polysaccharide? A) Glycosidic linkage B) Phosphodiester bond C) Ester linkage D) Peptide bond E) Hydrogen bond
The type of bond that is most important in maintaining secondary structure of a protein is...
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
What type of interaction would you expect between the following groups in a tertiary structure? Part...
What type of interaction would you expect between the following
groups in a tertiary structure?
Part A cysteine and cysteine O hydrophobic interaction O hydrogen bond O disulfide bond O salt bridge O hydrophilic interaction Submit Request Answer Part B Submit Request Answer Part B glutamate and lysine O hydrophobic interaction O hydrophilic interaction O hydrogen bond O salt bridge O disulfide bond Submit Request Answer Part C Part C serine and aspartate O hydrophobic interaction O hydrophilic interaction O...
Covalent and non-covalent bonds. Hydrogen bonds: what type of interaction, which atoms are involved. Covalent bonds,...
Covalent and non-covalent bonds. Hydrogen bonds: what type of interaction, which atoms are involved. Covalent bonds, hydrogen bonds, Van der Waals forces, electrostatic interactions. Polarity of water What is the maximum number of hydrogen bonds that one water molecule can have with neighboring water molecules? Hydrophobic and hydrophilic molecules. Colligative properties of water Osmosis: water flow Isotonic, hypertonic and hypotonic cells: describe Amphipathic molecules. What is the molecular structure of water? Water as a universal solvent Define and describe cohesion...
17. Which type of interactions (forces) found in proteins is MOST APPROPRIATELY matched with the feature...
17. Which type of interactions (forces) found in proteins is MOST APPROPRIATELY matched with the feature that follows? a. Ionic bonds: a-helical secondary structure b. Peptide bonds: association of subunits to form quaternary structure c. Hydrophobic interaction: tertiary structure d. Hydrogen bonds: covalent cross-links between olypeptides e. Cation-anion interactions: B-pleated sheet
Name: CHEM 131 3. (8 pts) What type of interaction is expected between the side chains...
Name: CHEM 131 3. (8 pts) What type of interaction is expected between the side chains of the following pairs of amino acids (examples include salt bridges, H-bonding, disulfide bonds and dispersion forces)? Tyrosine and asparagine a) b) Leucine and proline c) two cysteines Give an example of two amino acids that could form a salt bridge (chemical structure or 3 letter d) code) 4. (10 pts) ldentify in which structural feature (1, 2" or 3" structure) of a protein...
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...
Hello, can someone please answer the followign quesiton. Which of the following statements about the oxyanion...
Hello, can someone please answer the followign
quesiton.
Which of the following statements about the oxyanion hole in serine proteases are true? 1. This preformed loop is properly positioned to stabilize the negatively charged tetrahedral intermediate involved in amide bond hydrolysis 2. The backbone NH bonds of S195 and G193 create H-bonding interactions with the developing negative charge as S195 attacks the scissile carbon bond 3. It represents an enthalpic interaction that helps stabilize the transition state. 4. It represents...
1. Which of the following amino acids has the most hydrophobic side chain? a). E b)....
1. Which of the following amino acids has the most hydrophobic side chain? a). E b). F c). S d). W e). Y 2. Which type of non covalent interaction would you expect to be present between Cl- and H2O? a). Ionic interactions ("salt links") b). Hydrogen bonds c). Van der Waals interactions d). Ion-dipole interactions For the first question, I have F and W both being hydrophobic chains but am unsure why or how to tell which one would...
A peptide bond between two amino acids is what type of functional group? Ketone O Ester Amide O Disulfide Aldehyde The tertiary structure of a proteins is NOT held together by which type of bond/interaction? Hydrogen bond Electrostatic interactions Hydrophobic interactions Peptide bond Disulfide bonds
11) Which of the following CAN NOT be directly involved in the foiding of a protein trom ts secondary tertiary structure? A) Hydrogen bond B) Peptide bond C) Hydrophobic interaction D) Disulfide covalent bond E) lonic interaction 12) Which type of bond links one carbohydrate to the next one in a polysaccharide? A) Glycosidic linkage B) Phosphodiester bond C) Ester linkage D) Peptide bond E) Hydrogen bond
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
What type of interaction would you expect between the following
groups in a tertiary structure?
Part A cysteine and cysteine O hydrophobic interaction O hydrogen bond O disulfide bond O salt bridge O hydrophilic interaction Submit Request Answer Part B Submit Request Answer Part B glutamate and lysine O hydrophobic interaction O hydrophilic interaction O hydrogen bond O salt bridge O disulfide bond Submit Request Answer Part C Part C serine and aspartate O hydrophobic interaction O hydrophilic interaction O...
17. Which type of interactions (forces) found in proteins is MOST APPROPRIATELY matched with the feature that follows? a. Ionic bonds: a-helical secondary structure b. Peptide bonds: association of subunits to form quaternary structure c. Hydrophobic interaction: tertiary structure d. Hydrogen bonds: covalent cross-links between olypeptides e. Cation-anion interactions: B-pleated sheet
Name: CHEM 131 3. (8 pts) What type of interaction is expected between the side chains of the following pairs of amino acids (examples include salt bridges, H-bonding, disulfide bonds and dispersion forces)? Tyrosine and asparagine a) b) Leucine and proline c) two cysteines Give an example of two amino acids that could form a salt bridge (chemical structure or 3 letter d) code) 4. (10 pts) ldentify in which structural feature (1, 2" or 3" structure) of a protein...
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...
Hello, can someone please answer the followign
quesiton.
Which of the following statements about the oxyanion hole in serine proteases are true? 1. This preformed loop is properly positioned to stabilize the negatively charged tetrahedral intermediate involved in amide bond hydrolysis 2. The backbone NH bonds of S195 and G193 create H-bonding interactions with the developing negative charge as S195 attacks the scissile carbon bond 3. It represents an enthalpic interaction that helps stabilize the transition state. 4. It represents...
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