Revision questions unit 4
Describe the functions of proteins 2. Explain obligatory nitrogen loss from the body and how it relates to amino acid requirement. 3. Discuss protein classification and give examples 4. Draw and explain the formation of a peptide bond. 5. Discuss the methods used to determine protein quality 6. How does the body eliminate excess nitrogen? 7. Define negative nitrogen balance. What factors contribute to it? 8. Explain transamination reactions in protein metabolism. 9. What is the function of urea cycle? 10. Explain factors that increase Blood urea nitrogen. 11. Explain three ways in which amino acid ‘carbon skeletons” are utilized in energy production 12. List two hormones involved in protein metabolism. 13. Explain phenylketonuria (PKU). 14. Explain why the urea cycle enzymes increase during acute starvation |  |