Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Correct the answer
Transcribed Image Text:The pneumoniae isolates are capable of capsule
synthesis. All of the following apply to transformation
of Streptococcus pneumoniae EXCEPT
Alignment of donor genes with recipient
chromosome
At risk populations for S. pneumoniae are those <5
and >65 years of age
S strains that are 100,000X more virulent than R
strains
No contact between donor and recipient cells
Replacement of recipient genes with donor genes
Acquisition of a Vir plasmid carrying capsule-
producing genes
Transcribed Image Text:Use the following to answer 4 consecutive questions
Case History: A patient is admitted to the Emergency
Department with a 3 day history of severe coughing
and fever, then is transferred to the ICU with severe
bacterial pneumonia (lung infection) caused by
Streptococcus pneumoniae. The patient is placed on
the fluoroquinolone antibiotic Levaquin (R) and
initially improves, however the patient relapses and
dies on day 5 of hospitalization. Two cultures were
performed at day 1 and 5. The isolates are identical
with the exception that the S. pneumoniae cultured
from day 1 has a point mutation in the parC gene and
is susceptible to Levaquin while the S. pneumoniae
cultured from day 5 has point mutations in both the
parC and gyrA genes and is resistant to Levaquin. The
patient dies on day 5 from pneumonia and sepsis
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