Exam 3: Bacteria and Archaea

The bacterial chromosome ________.

A client has a serious case of the flu.A random sample of sputum was taken from the patient coughing up blood.The lab tech said they had isolated a bacterium that did not have any peptidoglycan.You hypothesize that the identity of this microbe could possibly be ________.

Which structure protects bacteria from being phagocytized by white blood cells?

The ________ stain is used to stain and differentiate Mycobacterium and Nocardia from other bacteria.

Which of the following is not true of the outer membrane?

An RN in a primary care office is caring for a 15-year-old male with severe gastrointestinal distress. The patient reports four days of diarrhea, vomiting, and intermittent fever. A stool culture was ordered in an attempt to identify a disease-causing pathogen. -The laboratory report shows that a motility test was performed on the sample with positive results. Thinking about bacterial movement,the RN is aware that this bacterium could possess which structure(s)for motility?

Which of the following is not a characteristic of bacteria?

What three components comprise the flagellum,extending from the cytoplasm to the exterior of the cell?

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. -The specimens are Gram-stained and analyzed microscopically. The laboratory technician observes spherical purple cells arranged in short chains. Based upon this evidence,which of the following microbes is potentially the pathogen affecting the patient?

Boiling water (100°C)can normally destroy endospores.

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. -The provider educates the patient about his condition,based on information from the laboratory findings and clinical presentation. Later,the RN reinforces the teaching and explains why this infection may be difficult to treat with antibiotics. Which part of the cell envelope restricts the passage of many of drugs into gram-negative bacteria?  

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.

The bacterial cell membrane is a site for many enzymes and metabolic reactions.