Chapter Review/study Guide For Microbiology Chapters 3-6

Microbiology Chapter 4- 6 Review Questions Chapter 3 Questions 7,8,9,10,12,13,14,18,19,20,21,22, and 23 7. Which of the following is an enzyme? a. Fructose b. Ligase c. Dextrose d. Lactose 8. The compound that enters the Krebs cycle and combines with oxaloacetic acid is a. citric acid. b. pyruvic acid. c. acetyl-CoA. d. phosphoglyceraldehyde. 9. The anticodons are located in a. tRNA. b. rRNA. c. mRNA. d. ribosomes. 10. In which phase of mitosis do the chromatids separate? a. Prophase b. Metaphase c. Anaphase d. Telophase 11. 12. The sterol-like molecules in bacterial plasma membranes are Hopanoids. 13. A cell organelle that contains digestive enzymes is a(n) Lysosome. 14. The allosteric site is present in Enzymes. 15. 16. 17. 18. Discuss the regulation of enzyme activity. Enzyme activity can be regulated/influenced by a number of factors, such as temperature, pH, substrate concentration, enzyme concentration, product concentration, cofactors, and coenzymes.19. Name and describe the pathways of aerobic cellular respiration. Aerobic cellular respiration requires three pathways: (1) glycolysisthe breakdown of glucose into two molecules of pyruvic acid (the process occurs in the cytoplasm and produces two molecules of ATP and two molecules of reduced NAD), which is followed by the conversion into acetyl-CoA, which