Which of the following is NOT an example of protein secondary structure?

Which of the following is TRUE, if the protein  pH is electrically neutral? Refer to the graph below. a. The denaturation of protein is lower than 100% b. The denaturation of protein is greater than 100% c. The protein is in native form d. The protein is completely denatured

Which of the following amino acid or types of amino acids are are rarely found in beta sheets? a. Polar charged amino acids  b. Polar uncharged amino acids  c. Non polar amino acids  D. Glycine

The order and sequence of amino acids in a polypeptide determines what protein structure O A. non essential amino acids B. essential amino acids standard amino acids O D. alpha amino acids 5

Which of the following is incorrect about the beta-sheet? a. The strands in anti-parallel beta-sheets are usually connected with turns b. Side chains are alternated above and below the sheet C. Parallel beta-sheets are less stable than the anti-parallel ones Od. It is stabilized by hydrophobic interactions between the side chains of nonpolar residues

Proteins constitute alpha-helices, beta-sheets, and loops.  1. Why are lesser loops better

Most proteins denature at high temperatures. A. Are peptide bonds typically broken at high temperatures, yes or no? _________________ B. Does denaturation disrupt the primary structure of a protein, yes or no? __________________ C. Why do proteins denature at high temperatures? D. Is it likely that a denatured protein is able to perform its physiological function, yes or no? Why or why not? Thoughtfully defend your answer.

Indicate which of the following are present in the primary, secondary, tertiary, and quaternary structures ofproteins: a. peptidebonds b. hydrogen bonds between adjacentpeptides c. hydrogen bonds within a singlepeptide d. hydrophobic interactions e. association of four polypeptide chains

Which of the following is incorrect about the peptide Arg-Asp-Cys-Tyr-Gln-Arg-Glu? It has six peptide bonds b. It has a net charge of zero at pH 7 It has six charged groups at pH 7 d. None; all the other choices are correct a. C.

Which of the following describes the most likely outcome of a mutation that causes a sin- gle amino acid to be removed from a protein subunit? A It will affect the primary, secondary, and tertiary structures of the protein. B с D It will affect the secondary and tertiary structures of the protein but not the primary structure. There will be no observable effect on the structure of the protein. It will change the primary structure of the protein without affecting other structures in the protein.