Question 1

All of the following pertain to endotoxins, except they

Accepted Answer

A)   are specific bacterial cell wall lipids.
B)   can stimulate fever in the human body.
C)   can cause shock in the human body.
D)   are involved in typhoid fever and some meningitis cases.
E)   are found in acid-fast bacterial cell walls.F) C) and D)
G) C) and E)

Question 2

Bacteria with small bunches of flagella emerging from the same site are said to be

Accepted Answer

A)   lophotrichous.
B)   peritrichous.
C)   monotrichous.
D)   amphitrichous.
E)   spirilla.F) B) and C)
G) B) and D)

Question 3

Which of the following makes possible the differentiation of members of the genus Mycobacterium and the genus Nocardia from other bacteria?

Accepted Answer

A)   the Gram stain
B)   the presence of flagella
C)   the acid-fast stain
D)   an endospore stain
E)   the capsule stainF) None of the above
G) A) and D)

Question 4

The outcome of the Gram stain is based on differences in the cell's

Accepted Answer

A)   ribosomes.
B)   inclusions.
C)   cell wall.
D)   cell membrane.
E)   flagella.F) All of the above
G) A) and C)

Question 5

All of the following structures contribute to the ability of pathogenic bacteria to cause disease, except

Accepted Answer

A)   inclusions.
B)   fimbriae.
C)   capsule.
D)   slime layer.
E)   outer membrane of gram-negative cell walls.F) B) and E)
G) A) and E)

Question 6

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.

Accepted Answer

A) True 
 B)False

Question 7

The enzyme _____, that is found in tears and saliva, can hydrolyze the bonds in the glycan chains of certain bacterial cell walls.

Accepted Answer

The answer of The enzyme _____, that is found in...

Question 8

A bacterial genus that has waxy mycolic acid in the cell walls is

Accepted Answer

A)   Mycobacterium.
B)   Mycopla.
C)   Streptococcus.
D)   Corynebacterium.
E)   Salmonella.F) C) and D)
G) A) and B)

Question 9

_____ Manual of Systematic Bacteriology is a manual of bacterial descriptions and classifications.

Accepted Answer

The answer of _____ Manual of Systematic Bacteriology is a...

Question 10

A microoganism has been described to you as living in hot acidic habitats in the waste piles of coal mines that regularly sustain a pH of 1 and a temperature of nearly 60°C. Which type of organism do you immediately assume it is?

Accepted Answer

A)   Gracillucates
B)   Firmicutes
C)   Actinobacteria
D)   Archaea
E)   SpirochaetesF) D) and E)
G) B) and D)

Question 11

The most immediate result of destruction of a cell's ribosomes would be

Accepted Answer

A)   material would not be able to cross the cell membrane.
B)   protein synthesis would stop.
C)   destruction of the cell's DNA.
D)   formation of glycogen inclusions.
E)   loss of capsule.F) A) and D)
G) C) and D)

Question 12

Sarcinae refers to

Accepted Answer

A)   cocci in pairs.
B)   a cuboidal packet of cells.
C)   groups of endopsores.
D)   coffee-bean-shaped rods in pairs.
E)   vibrios in threes.F) D) and E)
G) B) and D)

Question 13

In bacteria such as members of the Bacillus and Clostridium genera, nutrient depletion is likely to result in

Accepted Answer

A)   germination.
B)   sporulation.
C)   binary fission.
D)   plolysis.
E)   starvation.F) A) and E)
G) C) and D)

Question 14

Hot carbol fuchsin is the primary dye in the acid-fast stain.

Accepted Answer

A) True 
 B)False

Question 15

Peptidoglycan is a unique macromolecule found in bacterial

Accepted Answer

A)   cell walls.
B)   cell membranes.
C)   capsules.
D)   slime layers.
E)   inclusions.F) B) and C)
G) B) and D)

Question 16

Which of the following is mismatched?

Accepted Answer

A)   Rickettsia rickettsii: Rocky Mountain Spotted Fever
B)   Rickettsia typhi: endemic typhus
C)   Chlamydia trachomatis: blindness
D)   Coxiella burnetti: cowpox
E)   All of these choices are correct.F) C) and D)
G) D) and E)

Question 17

If you observe rod-shaped, pink cells on a slide that had just been Gram stained, you can assume that their cell walls contain endotoxin.

Accepted Answer

A) True 
 B)False

Question 18

Lysozyme, an enzyme found in tears, provides a natural defense against bacteria by

Accepted Answer

A)   hydrolyzing peptidoglycan in cell walls.
B)   inhibiting protein synthesis.
C)   removing flagella.
D)   dissolving the cell membrane.
E)   removing the capsule from outside the cell.F) All of the above
G) B) and C)

Question 19

The presence of thylakoids, phycocyanin, gas inclusions, and cysts would be associated with

Accepted Answer

A)   green sulfur bacteria.
B)   cyanobacteria.
C)   purple sulfur bacteria.
D)   archaea.
E)   spirochetes.F) A) and C)
G) C) and D)

Question 20

The function of bacterial endospores is

Accepted Answer

A)   to convert gaseous nitrogen to a usable form for plants.
B)   for reproduction and growth.
C)   for protection of genetic material during harsh conditions.
D)   the storage of excess cell materials.
E)   to have sites for photosynthesis.F) A) and B)
G) A) and C)

Exam 4: A Survey of Prokaryotic Cells and Microorganisms

Sarcinae refers to

Correct AnswerverifiedShow Answer

Which of the following is mismatched?

Correct AnswerverifiedShow Answer

Bacteria with small bunches of flagella emerging from the same site are said to be

Correct AnswerverifiedShow Answer

If you observe rod-shaped, pink cells on a slide that had just been Gram stained, you can assume that their cell walls contain endotoxin.

Correct AnswerverifiedShow Answer

The outcome of the Gram stain is based on differences in the cell's

Correct AnswerverifiedShow Answer

A microoganism has been described to you as living in hot acidic habitats in the waste piles of coal mines that regularly sustain a pH of 1 and a temperature of nearly 60°C. Which type of organism do you immediately assume it is?

Correct AnswerverifiedShow Answer

All of the following structures contribute to the ability of pathogenic bacteria to cause disease, except

Correct AnswerverifiedShow Answer

The function of bacterial endospores is

Correct AnswerverifiedShow Answer

A bacterial genus that has waxy mycolic acid in the cell walls is

Correct AnswerverifiedShow Answer

_____ Manual of Systematic Bacteriology is a manual of bacterial descriptions and classifications.

Correct AnswerverifiedShow Answer

The most immediate result of destruction of a cell's ribosomes would be

Correct AnswerverifiedShow Answer

Peptidoglycan is a unique macromolecule found in bacterial

Correct AnswerverifiedShow Answer

Hot carbol fuchsin is the primary dye in the acid-fast stain.

Correct AnswerverifiedShow Answer

The presence of thylakoids, phycocyanin, gas inclusions, and cysts would be associated with

Correct AnswerverifiedShow Answer

Which of the following makes possible the differentiation of members of the genus Mycobacterium and the genus Nocardia from other bacteria?

Correct AnswerverifiedShow Answer

All of the following pertain to endotoxins, except they

Correct AnswerverifiedShow Answer

The enzyme _____, that is found in tears and saliva, can hydrolyze the bonds in the glycan chains of certain bacterial cell walls.

Correct AnswerverifiedShow Answer

Lysozyme, an enzyme found in tears, provides a natural defense against bacteria by

Correct AnswerverifiedShow Answer

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.

Correct AnswerverifiedShow Answer

In bacteria such as members of the Bacillus and Clostridium genera, nutrient depletion is likely to result in

Correct AnswerverifiedShow Answer

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A microoganism has been described to you as living in hot acidic habitats in the waste piles of coal mines that regularly sustain a pH of 1 and a temperature of nearly 60^°C. Which type of organism do you immediately assume it is?

Correct Answer
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