Chapter 25
A thounsandeth
The volume of a typical bacterium is about _____ the volume of a typical eukaryotic cell.
What is the purpose of sex pili
To transmit DNA among bacteria
By means of rotating flagella
How do bacteria move
Which type of bacterium would not be able to survive in the presence of oxygen
Obligate Anerobic
Botulism
Which disease is caused by an exotoxin released by the gram-positive, endospore-forming bacteria, often because food was not heated sufficiently to kill the endospores?
Cyanobacteria
Which is the only prokaryote to carry on photosynthesis that generates oxygen?
Bacilli
Which of the following are rod-shaped bacteria?
It is found in recipient cells, not donor cells.
Which statement about an F factor is FALSE?
Their capsule of slime layer
Some bacteria avoid being phagocytized by a host's immune system by means of
Chemoautotroph
A bacterium that uses the oxidation of inorganic compounds to provide energy for manufacturing nutritious organic compounds is a:
Binary Fission
The most common mode of reproduction in bacteria is
Absence of peptodoglycan
The most significant difference between archaea and bacteria is the
Causes of diseases
What are Koch's postulates
Cow digestive tracts
Where would you likely find Euryarchaeota bacteria
endotoxins; exotoxins
Bacterial ____ cause systemic symptoms such as fever, whereas bacterial ____ cause more specific maladies
Sugars and Crosslinked proteins
Peptidoglycan consists of
fimbriae
Small hairlike structures made up of protein on the surface of bacteria are called
Gram Negative Bacteria
Streptococci, the bacteria responsible for strep throat infections, is classified within which group of Bacteria?
Conjugation
____ is a form of genetic exchange in bacteria that involves contact between two cells.
Mutualistic
Cows and other ruminates rely on a ____ relationship with bacteria in their digestive tract
Purple; polysaccharides
Gram-positive bacteria would stain ____ in a gram stain because of a thick layer of ____ in their cell walls
Ether linkages
The Archaea plasma membranes are made up of branched-chain hydrocarbons bounded to glycerol by
Bacteria form endospores
How do some bacteria respond to adverse environmental conditions
Fillament
Which structure acts like a motor for the bacterial flagellum?
Bacillus anthracis, which causes anthrax
Which was the first bacterium to be clearly identified as the cause of an infectious disease?
Penicillin cannot reach the thin peptiodoglycan layer easily
Why is penicillin ineffective against gram-negative bacteria?
Biofilms are usually less than 2um thick
Which statement about biofilms is FALSE?
Very few species of bacteria are used to clean up various forms of pollution
Which statement about bioremediation is FALSE?
Ribosome
Although bacteria lack membrane-bound organelles, such as chloroplasts and mitochondria, they can still perform the functions of these organelles by localizing certain metabolic enzymes on: