Question 1

Endospores represent a challenge to the fields of industrial and medical microbiology because

Accepted Answer

A)   they are resistant to harsh environments, thus allowing survival of endospore-forming organisms under conditions in which non-endospore-forming cells would not survive.
B)   endospore-forming organisms are often dangerous pathogens.
C)   endospores are significantly smaller than vegetative cells.
D)   endospores are resistant to harsh environments, thus allowing survival of endospore-forming organisms under conditions in which non-endospore-forming cells would not survive, and endospore-forming organisms are often dangerous pathogensE) None of the above
F) B) and C)

Question 2

Sedimentation coefficients are proportional to the molecular weight of a particle and are not affected by the volume and shape of the particle.

Accepted Answer

A) True 
 B)False

Question 3

Square planar arrangement of cells that forms when round bacteria remain attached to each other during reproduction are called

Accepted Answer

A)   streptococci.
B)   staphylococci.
C)   tetrads.
D)   sarcinae.E) A) and D)
F) B) and D)

Question 4

A feature unique to some archaeal plasma membranes is that they may

Accepted Answer

A)   consist of a lipid bilayer that lacks integral membrane proteins.
B)   consist of a lipid bilayer with embedded proteins.
C)   contain sterols such as cholesterol.
D)   consist of a lipid monolayer.E) B) and C)
F) C) and D)

Question 5

Sterol-like molecules called hopanoids are thought to be important for the structural integrity of many bacteria because of their suspected role in membrane stabilization.

Accepted Answer

A) True 
 B)False

Question 6

When the cell wall is removed from a Gram-negative bacterium without removing the outer membrane, the resulting form is called a(n) __________.

Accepted Answer

The answer of When the cell wall is removed from...

Exam 3: Bacteria and Archaea

Endospores represent a challenge to the fields of industrial and medical microbiology because

Correct Answer
verified

Sedimentation coefficients are proportional to the molecular weight of a particle and are not affected by the volume and shape of the particle.

Correct Answer
verified

Square planar arrangement of cells that forms when round bacteria remain attached to each other during reproduction are called

Correct Answer
verified

A feature unique to some archaeal plasma membranes is that they may

Correct Answer
verified

Sterol-like molecules called hopanoids are thought to be important for the structural integrity of many bacteria because of their suspected role in membrane stabilization.

Correct Answer
verified

When the cell wall is removed from a Gram-negative bacterium without removing the outer membrane, the resulting form is called a(n) __________.

Correct Answer
verified

Exam 3: Bacteria and Archaea

Endospores represent a challenge to the fields of industrial and medical microbiology because

Correct AnswerverifiedShow Answer

Sedimentation coefficients are proportional to the molecular weight of a particle and are not affected by the volume and shape of the particle.

Correct AnswerverifiedShow Answer

Square planar arrangement of cells that forms when round bacteria remain attached to each other during reproduction are called

Correct AnswerverifiedShow Answer

A feature unique to some archaeal plasma membranes is that they may

Correct AnswerverifiedShow Answer

Sterol-like molecules called hopanoids are thought to be important for the structural integrity of many bacteria because of their suspected role in membrane stabilization.

Correct AnswerverifiedShow Answer

When the cell wall is removed from a Gram-negative bacterium without removing the outer membrane, the resulting form is called a(n) __________.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
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Correct Answer
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