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Download BY 330 Spring 2015Worksheet 3 Draw a protein made up of two
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BY 330 Spring 2015 Worksheet 3 1. Draw a protein made up of two amino acids. Label the peptide bonds and indicate the N and C termini. What kind of reaction links amino acids together? 2. Explain why the cell only makes a small number of the possible proteins, despite the fact that many options are available. 3. List and describe the two main types of protein secondary structure. Are R groups involved in secondary structure? (Include examples and drawings.) 4. List at least three benefits to the addition of more domains to a peptide. 5. True or False: Peptide bonds are the only covalent bonds present in higherorder protein structure. 6. True or False: All four levels of protein structure are assembled during protein synthesis. BY 330 Spring 2015 Worksheet 3 7. Describe how an enzyme works to lower the activation energy of a reaction. 8. Name and distinguish between the three types of active sites that can be found on an enzyme. 9. Distinguish between negative and positive modulation and describe their relationship to the Michaelis constant (Km). 10. Draw a graph depicting the typical relationship between enzyme activity and substrate concentration. Label all relevant parts (x and y axis, Vmax, 1/2Vmax, saturation point, Km, etc). What are the three ways to regulate enzyme activity?