The primary structure of a protein does not describe the number of each type of amino acid (percent composition). True False
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- The use of salt bridges or hydrophobic interactions (or pockets) to stabilize interactions between more distant amino acids within a single polypeptide, is a demonstration of protein QUATERNARY structure. True FalseA protein that is normally found in an aqueous solution has these amino acids in its primary structure: glutamic acid, lysine, leucine, arginine, and tryptophan. Predict the location of each amino acid: in the interior portion of the protein (away from water) or on the outside of the protein (facing water). glutamic acid _________________________ lysine _________________________ leucine _________________________ arginine ________________________ tryptophan _________________________ Indicate whether each of the following statements describes a reversible competitive inhibitor, reversible noncompetitive inhibition, or an irreversible inhibitor. ________ a. It bonds covalently to the active site ________ b. The inhibitor effect can be reversed by the addition of more substrate ________ c. Inhibitor structure resembles that of the substrate ________ d. The inhibitor and substrate cannot bind to the enzyme simultaneously.Fibrous proteins, globular proteins, and conjugated proteins are the three (3) primary kinds of proteins. Give a brief description of each kind and an example of each.
- A protein that is normally found in an aqueous solution has these amino acids in its primary structure: glutamic acid, lysine, leucine, arginine, and tryptophan. Predict the location of each amino acid: in the interior portion of the protein (away from water) or on the outside of the protein (facing water). glutamic acid _________________________ lysine _________________________ leucine _________________________ arginine ________________________ tryptophan _________________________Describe how a polypeptide can fold to become a functioning protein. Be sure to address the four levels of protein (folding or organization known as hierarchy of structure). In addition, describe three different jobs proteins can perform if the protein has the correct shape.Quaternary structure defines the spatial arrangement of proteins with at least two polypeptide chains. True False
- The protein's secondary structure provide the overall arrangement of atoms. True or falseGlutamine is a conservative replacement for asparagine in the primary structure of a protein. This implies that"Loops of polypeptide that protrude from the surface of a protein often form the binding sites for other molecules" is true or false.
- Proteins can be separated into 9 general classifications based on the role they play in a cell. List or briefly describe two of these functional classifications and provide an example of a protein that falls into each of those two categories.Suppose that the given peptide below is a segment in a globular protein's primary structure. Determine what would most likely be the type of secondary structure that it will form. Explain. T-L-S-A-R-I-D-VOligosaccharides are usually attached to proteins on loops or turns that project from the protein surface. Explain why this is the case.
