Questions: When flavoprotein transfers electrons directly to the final electron acceptor, hydrogen peroxide is produced. What other consequences might result fro electron carriers in the ETC being bypassed? (Hint: See Section 5 Introduction and Appendix A). Provide a possible explanation as to why this test identifies the presence of cytochrome c oxidase and not other oxidases. When testing microaerophiles for nitrate utilization, some microbiologists prefer to use media with a small amount of agar in it. Why do you suppose this is done? Many bacteria that are able to metabolize citrate (as seen in the Krebs Cycle) produce negative results in this test. Why? Be specific. Refer to Appendix A for help. Virtually all sulfur-reducing members of are motile, as shown Enterobacteriaceae in Figure 5-57. Suppose for a moment that you inoculate a SIM medium with an
Questions: When flavoprotein transfers electrons directly to the final electron acceptor, hydrogen peroxide is produced. What other consequences might result fro electron carriers in the ETC being bypassed? (Hint: See Section 5 Introduction and Appendix A). Provide a possible explanation as to why this test identifies the presence of cytochrome c oxidase and not other oxidases. When testing microaerophiles for nitrate utilization, some microbiologists prefer to use media with a small amount of agar in it. Why do you suppose this is done? Many bacteria that are able to metabolize citrate (as seen in the Krebs Cycle) produce negative results in this test. Why? Be specific. Refer to Appendix A for help. Virtually all sulfur-reducing members of Enterobacteriaceae are motile, as shown in Figure 5-57. Suppose for a moment that you inoculate a SIM medium with an
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