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Part A Which is not true about beta-sheets? Antiparallel sheets provide better hydrogen bonding than parallel...
Part A Which is not true about beta-sheets? O Antiparallel sheets provide better hydrogen bonding than parallel sheets O Antiparallel is when two peptide strands run in opposite directions. O The sheets are pleated The side chain of the residues are side-byside (planar) to the peptide backbone. Submit Request Answer
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.
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.
Biochemistry! Please read the whole question before answering.
And please explain.
1. Read both parts A and B of question 1 before you answer either one. Draw a peptide backbone that extends for three amino acids. Label the psi, phi and omega angles, showing the direction of rotation. Indicate resonance. Draw the structure with the more likely cis or trans conformation. Indicate side chains with the letters R1, R2 and R3. A. B. Draw a second peptide below the one...
Which is not true about silk fibroin? Residues contain small sidechains (like alanine and glycine). O It is a form of tertiary structure o It contains parallel beta-sheets The peptide strands are tightly packed to enhance tensile stroneth
Which is not true about silk fibroin? Residues contain small sidechains (like alanine and glycine). O It is a form of tertiary structure O It contains parallel beta-sheets O The peptide strands are tightly packed to enhance tensile strength.
Which is not true about silk fibroin? O Residues contain small sidechains (like alanine and glycine). O It is a form of tertiary structure O It contains parallel beta-sheets O The peptide strands are tightly packed to enhance tensile strength. Submit Request Answer
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...
Each of the following statements about the structure of DNA may be either true or false. Choose the appropriate answer for each of these statements. Bonding between adenine and thymine on opposite strands involves two hydrogen bonds. Nitrogenous bases are located on the outside of the double helix: phosphates are located towards the middle of the double helix. Bonding between guanine and cytosine on opposite strands involves three hydrogen bonds. DNA and RNA are structurally different due to the difference...
Part B Which of the following statements about DNA structure is true? View Available Hint(s) The pentose sugar in DNA is ribose. O ooo Hydrogen bonds formed between the sugar.phosphate backbones of the two DNA chains help to stabilize DNA structure Nucleic acids are formed through phosphodiester bonds that link nucleosides together. The nucleic acid strands in a DNA molecule are oriented antiparallel to each other, meaning they run in opposite directions. Submit Part What is the complementary DNA sequence...