Answer Happy

EXAM II Topics Covered 2 BIOS 2421 Ch 4 1. Draw and Define a typical bacterial growth curve, label the axes and explain what happens in each phase. How long dose it take for E. coli to double its population? 2. List the chemical and physical requirements for the growth of bacteria 3. Know the oxygen requirements for: obligate aerobes, facultative anaerobes, obligate anaerobes, aerotolerant anaerobes, microaerophiles (table 4.7) 4. Know what conditions are required for acidophiles, halophiles, thermophiles and mesophiles 5. List the toxic forms of oxygen metabolism and explain how the cell detoxifies them Ch 6, 7, 9 6. What is the meaning of the phrase "The normal flow of genetic information?" 7. Explain the following processes: DNA replication, Transcription, Translation What does gene expression mean? What is a gene product? Are all genes expressed in a bacterial cell? 8.