The Genesis of Germs Chapters 1-2 Flashcards
The technique of Gram-staining allows a what?
a clearer view of the cell wall
What percentage of bacteria is pathogenic?
5%
Does the process of nitrification involve nitrifying bacteria that brings about the oxidation of ammonia to nitrites and of nitrates to nitrites?
no
Does the flagellum act like an anchor
no
The fastest growth of bacteria happens in which phase?
logarithmic phase
What has internalized flagellum that lie beneath the cell wall?
Spirochetes
The idea that microbes “pop” into existence from substances less complex than a living cell is termed:
spontaneous generation
Name the microbiologist who first described synthesis of the red pigment found in bacteria that often cause bread and communion wafers to have blood on it.
Robert P. Williams
New diseases are the product of
variation, or change within “kinds”, not evolution
Are the eukaryotic cells of bacteria generally smaller and simpler in structure than prokaryotic cells?
no
In his book, Darwin’s Black Box, Dr. Michael Behe describes flagella as
having irreducible complexity
Is disease the result of bacterial mutation and evolution?
no
Which scientist devised the theory of spontaneous generation by boiling plant infusions in swan-necked flasks that maintained ther sterility for long periods of time?
Louis Pasteur
The word bacteria comes from the Latin word meaning:
staff or rod
Give the name of the pigment responsible for the bright red color in the bacteria that appeared as “blood.”
prodigiosin
In hospitials, does Serratia marcescens, tend to colonize the gastroinstestinal track of adults?
no
Does bacteria need cold temperatures to thrive?
no
Which scientist first observed and described some of the larger bacteria?
Anton van Leeuwenhoek
Name some characteristics for prokaryotes
They lack a true nucleus.
They usually divide by binary fission.
Their DNA is not associated with histones.
Their cell walls almost always contain peptidoglycan.
Is it necessary to master Latin when classifying bacteria?
no
The cell wall of a bacterium is best described as
rigid with some elasticity
Does the news media frequently write about the evolution of new microbe strains that can cause disease?
yes
Are pure culture grown artificially in a liquid medium unpredictable
no
