The correct name for CaO is calcium oxide but CuO is not copper oxide has to be explained. Concept introduction: An ionic compound has two elements one is metal and another one is non-metal. The metal ion always has positive charge and the non-metal ion always has negative ion in binary compounds. Example: NaCl, CO 2 . The following rule can be used for the naming of binary ionic compounds. The full name of the metallic element is given first, followed by a separate word containing the stem of the metallic element name and the suffix –ide. Atoms or elements are found in the atmosphere and earth crust in the form of ores or mixture of elements. Elements that are found at early times by the Romans and other ancient people named the metals with Latin names. Example, Iron belongs to Semitic origin and the Latin name of this compound was named as ferrum. The metal exists in two different forms Fe(II) and Fe(III) with ferrous and ferric names respectively.

Question

The diagram below illustrates a quorum sensing pathway from Staphylococcus aureus. Please answer the following questions. 1. Autoinduction is part of the quorum sensing system. Which promoter (P2 or P3) is critical for autoinduction? 2)This staphylococcus aureus grows on human wounds, causing severe infections. You would like to start a clinical trial to treat these wound infections. Please describe: a) What molecule do you recommend for the trial. Why? b) Your trial requires that Staphylococcus aureus be isolated from the wound and submitted to genome sequencing before admittance. Why? What are you testing for? 3) If a mutation arises where the Promoter P3 is constitutively active, how would that influence sensitivity to AIP? Please explain your rationale. 4) This pathway is sensitive to bacterial cell density. Describe two separate mutation that would render the pathway active independent of cell density. Briefly explain your rationale. Mutation 1 Mutation 2

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Chapter 4, Problem 4.87EP

Interpretation Introduction

Interpretation:

The correct name for CaO is calcium oxide but CuO is not copper oxide has to be explained.

Concept introduction:

An ionic compound has two elements one is metal and another one is non-metal. The metal ion always has positive charge and the non-metal ion always has negative ion in binary compounds. Example: NaCl, CO2.

The following rule can be used for the naming of binary ionic compounds.

The full name of the metallic element is given first, followed by a separate word containing the stem of the metallic element name and the suffix –ide.

Atoms or elements are found in the atmosphere and earth crust in the form of ores or mixture of elements. Elements that are found at early times by the Romans and other ancient people named the metals with Latin names.

Example, Iron belongs to Semitic origin and the Latin name of this compound was named as ferrum. The metal exists in two different forms Fe(II) and Fe(III) with ferrous and ferric names respectively.

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