Concerning substituted ammonium ion, the statement that is incorrect has to be chosen from the given options. Concept Introduction: Amines are a class of organic compounds. They are derivatives of ammonia. Similar to the nitrogen atom in ammonia, the amine nitrogen also has a lone pair of electrons on it. This means that amines can act as proton acceptors. When an amine is added to water a proton is transferred to the nitrogen atom. The resulting solution is a basic solution. This contains ammonium ions and hydroxide ions. Substituted ammonium ion is the one in which one or more alkyl, aryl, or cycloalkyl groups are substituted instead of hydrogen atoms. There are two important generalizations that is applied to the substituted ammonium ion and they are, Substituted ammonium ions are not neutral molecules. They are charged species. Nitrogen atom has four bonds in ammonium ion or substituted ammonium ion. The species is positively charged as the fourth bond formed is a coordinate covalent bond.

Question

Molecular Biology Please help with question. thank you You are studying the expression of the lac operon. You have isolated mutants as described below. In the presence of glucose, explain/describe what would happen, for each mutant, to the expression of the lac operon when you add lactose AND what would happen when the bacteria has used up all of the lactose (if the mutant is able to use lactose).5. Mutations in the lac operator that strengthen the binding of the lac repressor 200 fold 6. Mutations in the promoter that prevent binding of RNA polymerase 7. Mutations in CRP/CAP protein that prevent binding of cAMP8. Mutations in sigma factor that prevent binding of sigma to core RNA polymerase

Answer 1

Question

Chapter 17.6, Problem 2QQ

Interpretation Introduction

Interpretation:

Concerning substituted ammonium ion, the statement that is incorrect has to be chosen from the given options.

Concept Introduction:

Amines are a class of organic compounds. They are derivatives of ammonia. Similar to the nitrogen atom in ammonia, the amine nitrogen also has a lone pair of electrons on it. This means that amines can act as proton acceptors. When an amine is added to water a proton is transferred to the nitrogen atom. The resulting solution is a basic solution. This contains ammonium ions and hydroxide ions.

Substituted ammonium ion is the one in which one or more alkyl, aryl, or cycloalkyl groups are substituted instead of hydrogen atoms. There are two important generalizations that is applied to the substituted ammonium ion and they are,

Substituted ammonium ions are not neutral molecules. They are charged species.

Nitrogen atom has four bonds in ammonium ion or substituted ammonium ion. The species is positively charged as the fourth bond formed is a coordinate covalent bond.

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