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Exam 3: Bacteria and Archaea

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Question 31

Multiple Choice

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Gram-negative bacteria

A) are more susceptible to antibiotics that target peptidoglycan than gram-positive organisms.
B) are less susceptible to antibiotics that target peptidoglycan than gram-positive organisms.
C) stain purple in the Gram stain.
D) encompass all pathogens.
E) None of the choices is correct.

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Question 32

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If during the Gram stain procedure,the bacterial cells were viewed immediately after crystal violet was applied,gram-positive cells would be purple but gram-negative cells would be colorless.

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Question 33

Multiple Choice

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The outcome of the Gram stain is based on differences in the cell's

Each bacterial species represents a distinct organism that can produce viable offspring when mating with other bacteria of its kind.

Flagella move in a whiplike motion.

The site(s) for most ATP synthesis in bacterial cells is(are) the

Endospores of certain bacterial species can enter tissues in the human body,germinate,and cause an infectious disease.

The difference in cell wall structure of Mycobacterium and Nocardia compared to the typical gram-positive bacterial cell wall structure is

Chemical analysis of a bacterial cell structure detects calcium and dipicolinic acid.What is the identity of this structure?

Which of the following is mismatched?

The term that refers to the presence of a tuft of flagella emerging from the same site is

Bacterial endospores are not produced by

If bacteria living in salty seawater were displaced to a freshwater environment,the cell structure that would prevent the cells from rupturing is the

The slime layer provides bacteria greater pathogenicity as compared to the capsule.

A flagellum is anchored into the bacterial cell envelope by its

Which of the following is not a phenotypic trait of bacteria?

Please read the clinical scenario, and then answer the question that follow to become familiar with the traditional NCLEX question format. As an RN in a primary care office, you recently took care of a 15-year-old patient with severe gastrointestinal distress. Since the patient had experienced diarrhea, vomiting, and a fever for 4 days, a stool culture was ordered in an attempt to identify a disease-causing pathogen. The laboratory results have just been faxed over to your office and you begin to read the data. -Microscopic analysis revealed the presence of gram-negative bacilli in the patient's stool.Based upon this information,you picture in your mind which of the following images?

The two functions of bacterial appendages are

Lipopolysaccharide is an important cell wall component of

Please read the clinical scenario, and then answer the question that follow to become familiar with the traditional NCLEX question format. As a triage nurse in the ER, you begin the assessment of an elderly patient complaining of bloody diarrhea and severe stomach cramps. You find the patient has a fever of 104oF as well, and is showing signs of dehydration. IV fluids are administered while further analysis of the patient continues. -Testing is performed on the specimen in the laboratory.The Gram stain is an important test,as it differentiates bacteria into two broad classes: gram positive and gram negative.Which step in this process is the differential step,for it only acts upon one type of cell?