Exam 3: Bacteria and Archaea

Which of the following statements is not true regarding the differences between bacteria,archaea,and eukaryotes?

Which of the following is not a division of bacteria and archaea according to Bergey's Manual of Determinative Bacteriology?

Which of the following species of bacteria is not closely related to the others?

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

A 3-year-old patient presents to the ER after a sudden onset of high fever and chills, a productive cough, and shortness of breath. The parents indicate that the child had been healthy up until that morning. An initial assessment of the child shows an elevated temperature (103oF), rapid pulse rate (140 bpm), and low oxygen saturation level (82%). Supplemental oxygen and acetaminophen are administered immediately, and specimens are obtained from the patient for microbial analysis. -Further microscopic analysis of negatively stained specimens reveals a colorless ring around each of the spherical cells against a dark background. This clearing indicates that the pathogen possesses which structure(s)?

The chemical components of ribosomes are proteins and ________.

Lysozyme is most effective against ________.

Endospores are ________.

A bacterial cell exhibiting chemotaxis probably has ________.

The term diplococcus refers to an irregular cluster of spherical bacterial cells.

A triage nurse in the ER begins the assessment of an elderly patient complaining of bloody diarrhea and severe stomach cramps. The patient has a fever of 104oF as well, and is showing signs of dehydration. IV fluids are administered while further workup of the patient continues. -Specimen collection from the patient is ordered for microbial analysis in the hospital laboratory. Based upon the patient's symptoms,which of the following samples would the RN expect to be ordered for collection?

Spirochetes are able to move due to ________.

The cell ________ can be composed of three layers: the cytoplasmic membrane,the cell wall,and the outer membrane.

________ Manual of Systematic Bacteriology is a manual of bacterial descriptions and classifications.

A triage nurse in the ER begins the assessment of an elderly patient complaining of bloody diarrhea and severe stomach cramps. The patient has a fever of 104oF as well, and is showing signs of dehydration. IV fluids are administered while further workup of the patient continues. -Testing is performed on the specimen in the laboratory,including the Gram stain. This test separates bacteria into two broad classes: gram-positive and gram-negative. Which step in the staining process is the differential step,for it only acts upon one type of cell?

Movement of a cell toward a chemical stimulus is termed ________.

Bacterial cells could have any of the following appendages except ________.

Spirochetes have a twisting and flexing locomotion due to appendages called ________.

Halobacterium salinarium lives in and requires salt.This is an example of an archaeabacterium described as a(n)________.

Plasmids ________.