Q. Hydrophobic interactions are attractive interactions, resulting from the inability of water to form hydrogen bonds with certain side chains.

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Q. What is the name of attractions between polar or ionized R groups and water on the surface of the tertiary structure?

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Q. Which of the bonds are between the polar side groups of amino acids?

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Q. What is the name of the links between sulfur atoms of two cysteine amino acids?

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Q. What is the approximate strength of the interaction between atoms in a covalent bond?

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Q. Which of the following of a protein molecule determines the strength of van der Waals force?

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Q. In secondary structure, the interactions of the R groups give a protein its specific three-dimensional tertiary structure.

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Q. What is the name of the bond which is caused by changes in electron density?

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Q. Which of the following is a characteristic of the secondary structure of a protein?

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Q. Van der Waals forces are the only attractive forces present in nonpolar compounds.

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Q. What is the name of the bond formed between two ions by the sharing of electrons?

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Q. What is the name of the bond formed between two ions by the transfer of electrons?

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Q. What is the name of the bond found in metals; holds metal atoms together very strongly?

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Q. What is the name of the bond formed when electrons are shared equally?

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Q. What is the name of the bond formed when electrons are shared unequally?

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Q. Alpha-helix and b-sheet, if occur together, are found in different structural layers.

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Q. Adjacent polypeptide segments are stacked one above other.

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Q. B-Sheet is the most stable.

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Q. Which of the following will be a characteristic of homotypic quaternary structure?

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Q. Intracellular protein tertiary structures mostly held together by ___________

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