Author Question: Which statement best describes the bacterial cell wall? 1. It is a rigid structure. 2. It is ... (Read 59 times)

khang · **on:** Jul 23, 2018

Which statement best describes the bacterial cell wall?

1. It is a rigid structure.
2. It is semipermeable.
3. It is composed of lipids.
4. It is single-layered.

Question 2

A pediatric nurse is caring for a child who has an infectious organism that produces beta lactamase. The nurse knows that which drugs should not be prescribed for this infection?

Standard Text: Select all that apply.
1. Penicillins
2. Cephalosporins
3. Macrolides
4. Fluoroquinolones
5. Sulfonamides

sarajane1989 · **Reply #1 on:** Jul 23, 2018

Answer to Question 1

Correct Answer: 1
Rationale 1: The bacterial cell wall is rigid.
Rationale 2: The bacterial cell wall is nonpermeable.
Rationale 3: The bacterial cell wall is composed of carbohydrates and protein.
Rationale 4: The bacterial cell wall is multilayered.
Global Rationale: The cell wall is a structure that sets people apart from the bacterial world. Humans do not have them, but all bacteria do. The osmotic pressure is so high within a bacterial cell that the cell would rupture without the containment of this rigid structure. The cell wall also serves as a barrier to substances that try to enter the cell, including antibiotics. Simply, it protects the bacterial cell from a hostile environment.

Answer to Question 2

Correct Answer: 1,2
Rationale 1: Organisms that produce beta lactamase are resistant to many of the penicillins.
Rationale 2: Organisms that produce beta lactamase are resistant to many of the cephalosporins.
Rationale 3: Organisms that produce beta lactamase should be susceptible to macrolides.
Rationale 4: Organisms that produce beta lactamase should be susceptible to fluoroquinolones.
Rationale 5: Organisms that produce beta lactamase should be susceptible to sulfonamides.
Global Rationale: Organisms that produce beta lactamase are resistant to many of the penicillin and cephalosporin antibiotics.