Preceptorquizkey-sami

Preceptorquizkey-sami - Fall 2011 Cell Biology Quiz 3 Name:...

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Fall 2011 Cell Biology Quiz 3 Name: _______________________ Dr. Sarah Rothschild 1. What allows the secondary structure in proteins to occur? A. Amino Acid Sequence B. Hydrophobic Interactions C. N-H and C=O bonds in the polypeptide backbone D. S-S bonds E. None of the above 2. The binding site A. is complementary in shape to, and forms multiple covalent bonds with the ligand. B. is a cavity in the protein surface formed by a particular arrangement of amino acids. C. is primarily a result of unfolded regions in the protein D. is limited to one per protein. E. None of the above F. All of the above 3. Protein phosphorylation A. is a reaction catalyzed by protein kinases B. always increases a protein’s activity C. is a reaction catalyzed by protein phosphatases D. involves the transfer of the terminal phosphate group of ATP E. B and C F. A and D 4. Nucleosomes A. are composed of a short length of histone proteins wrapped around a core of DNA B. are the second level of organization in chromatin.
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This note was uploaded on 11/29/2011 for the course BIO 218 taught by Professor Rothschild during the Spring '11 term at VCU.

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Preceptorquizkey-sami - Fall 2011 Cell Biology Quiz 3 Name:...

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