Question 1

The process of endospore formation is _____________, while the process of an endospore growing into a vegetative cell is ____________.

Accepted Answer

A)   germination; sporulation
B)   reproduction; sporulation
C)   germination; reproduction
D)   sporulation; germinationE) A) and B)
F) A) and D)

Question 2

The term that refers to the presence of flagella all over the cell surface is

Accepted Answer

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

Question 3

All of the following are correct about a slime layer, except6_21_2016_QC_CS-54137

Accepted Answer

A)   it is a type of glycocalyx.
B)   it can be easily washed off the cell.
C)   it protects the cell from loss of water and nutrients.
D)   it enables movement of cells.
E)   it allows cells to participate in biofilms.F) A) and D)
G) All of the above

Question 4

Endospores of certain bacterial species can enter tissues in the human body, germinate, and cause an infectious disease.

Accepted Answer

A) True 
 B)False

Question 5

In the Gram stain, the mordant is

Accepted Answer

A)   crystal violet.
B)   safranin.
C)   alcohol.
D)   water.
E)   iodine.F) B) and D)
G) A) and C)

Question 6

Movement of a cell toward a chemical stimulus is termed _____.

Accepted Answer

The answer of Movement of a cell toward a chemical...

Question 7

Spirochetes have a twisting and flexing locomotion due to appendages called

Accepted Answer

A)   flagella.
B)   cilia.
C)   fimbriae.
D)   periplic flagella axial filaments) .
E)   sex pili.F) B) and D)
G) A) and E)

Question 8

Magnetosomes are

Accepted Answer

A)   infoldings of the cell membrane.
B)   termed metachromatic granules.
C)   responsible for the heat resistance of endospores.
D)   composed of magnetic iron oxide particles.
E)   found in all bacteria.F) B) and C)
G) None of the above

Question 9

Which of the following characteristics is not a property of cells or living things?

Accepted Answer

A)   cell boundary
B)   ability to replicate
C)   nucleus
D)   responds to stimulus
E)   All of the choices are not fundamental characteristics of living things.F) B) and E)
G) C) and D)

Question 10

The difference in cell wall structure of Mycobacterium and Nocardia compared to the typical gram-positive bacterial cell wall structure is

Accepted Answer

A)   the presence of more peptidoglycan.
B)   the predominance of unique, waxy lipids.
C)   the rapid decolorization during staining.
D)   the presence of lipopolysaccharide.
E)   All of these choices are correct.F) B) and E)
G) C) and D)

Question 11

Compare and contrast the cyanobacteria to the green and purple sulfur bacteria with regard to: a) habitat, b) photosynthesis properties, c) cell properties, and d) impact and importance to the environment.

Accepted Answer

a) Habitat:
Cyanobacteria are found in a...

Question 12

A prokaryotic cell wall that has primarily peptidoglycan with small amounts of teichoic acid and lipoteichoic acid is

Accepted Answer

A)   gram-negative.
B)   gram-positive.
C)   archaea.
D)   a spheroplast.
E)   acid fast.F) A) and C)
G) B) and D)

Question 13

Iodine is the decolorizer in the Gram stain.

Accepted Answer

A) True 
 B)False

Question 14

According to current thought regarding the domains of life, which two domains are believed to be the most closely related?

Accepted Answer

A)   Bacteria and Eukarya
B)   Archaea and Bacteria
C)   Archaea and EukaryaD) All of the above
E) B) and C)

Question 15

Which structure protects bacteria from being phagocytized?

Accepted Answer

A)   slime layer
B)   fimbriae
C)   cell membrane
D)   capsule
E)   All of these choices are correct.F) B) and E)
G) C) and D)

Question 16

Bacteria in the genus Mycopla and bacteria called L-forms lack cell walls.

Accepted Answer

A) True 
 B)False

Question 17

Endospores are

Accepted Answer

A)   metabolically inactive.
B)   resistant to heat and chemical destruction.
C)   resistant to destruction by radiation.
D)   living structures.
E)   All of these choices are correct.F) C) and E)
G) C) and D)

Question 18

Archaea do not have the typical peptidoglycan structure found in bacterial cell walls.

Accepted Answer

A) True 
 B)False

Question 19

The periplic space is

Accepted Answer

A)   larger in gram-positive bacteria.
B)   made up of lipopolysaccharides and phospholipids.
C)   an important reaction site for substances entering and leaving the cell.
D)   just external to the LPS layer of the outer membrane.
E)   absent in gram-negative bacteria.F) A) and E)
G) A) and C)

Question 20

Classification and taxonomy provide information and contribute to each of the following endeavors, except

Accepted Answer

A)   identification of unknown species.
B)   the study of evolutionary relationships.
C)   tracing the origins of bacteria.
D)   selection of appropriate antibiotics.
E)   enabling communication among scientists regarding the same and different species of microbes.F) A) and C)
G) B) and E)

Exam 4: A Survey of Prokaryotic Cells and Microorganisms

Compare and contrast the cyanobacteria to the green and purple sulfur bacteria with regard to: a) habitat, b) photosynthesis properties, c) cell properties, and d) impact and importance to the environment.

Correct AnswerAnswered by ExamLex AIa) Habitat:Cyanobacteria are found in a...View AnswerShow Answer

The term that refers to the presence of flagella all over the cell surface is

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Archaea do not have the typical peptidoglycan structure found in bacterial cell walls.

Correct AnswerverifiedShow Answer

Magnetosomes are

Correct AnswerverifiedShow Answer

Endospores are

Correct AnswerverifiedShow Answer

Bacteria in the genus Mycopla and bacteria called L-forms lack cell walls.

Correct AnswerverifiedShow Answer

A prokaryotic cell wall that has primarily peptidoglycan with small amounts of teichoic acid and lipoteichoic acid is

Correct AnswerverifiedShow Answer

Classification and taxonomy provide information and contribute to each of the following endeavors, except

Correct AnswerverifiedShow Answer

Iodine is the decolorizer in the Gram stain.

Correct AnswerverifiedShow Answer

All of the following are correct about a slime layer, except6_21_2016_QC_CS-54137

Correct AnswerverifiedShow Answer

Which of the following characteristics is not a property of cells or living things?

Correct AnswerverifiedShow Answer

Endospores of certain bacterial species can enter tissues in the human body, germinate, and cause an infectious disease.

Correct AnswerverifiedShow Answer

Spirochetes have a twisting and flexing locomotion due to appendages called

Correct AnswerverifiedShow Answer

Which structure protects bacteria from being phagocytized?

Correct AnswerverifiedShow Answer

Movement of a cell toward a chemical stimulus is termed _____.

Correct AnswerverifiedShow Answer

The periplic space is

Correct AnswerverifiedShow Answer

The difference in cell wall structure of Mycobacterium and Nocardia compared to the typical gram-positive bacterial cell wall structure is

Correct AnswerverifiedShow Answer

The process of endospore formation is _____________, while the process of an endospore growing into a vegetative cell is ____________.

Correct AnswerverifiedShow Answer

According to current thought regarding the domains of life, which two domains are believed to be the most closely related?

Correct AnswerverifiedShow Answer

In the Gram stain, the mordant is

Correct AnswerverifiedShow Answer

Correct Answer
Answered by ExamLex AI
a) Habitat:
Cyanobacteria are found in a...
View Answer

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The process of endospore formation is _, while the process of an endospore growing into a vegetative cell is .

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