Question 1

Most species of Gram-positive bacteria are

Accepted Answer

A)  photoautotrophic.
B)  photoheterotrophic.
C)  chemoautotrophic.
D)  chemoheterotrophic.
E)  photochemoautotrophic.F) A) and C)
G) B) and C) D

Question 2

The extreme thermophilic archaean Nanoarchaeum

Accepted Answer

A)  lives near hydrothermal vents.
B)  can live in temperatures above 230°F.
C)  is among the smallest known cells.
D)  is a parasite.
E)  is all of these.F) A) and D)
G) B) and E)

Question 3

Which of the following is a correct description of a prokaryote shape?

Accepted Answer

A)  A coccus is corkscrew shaped.
B)  An archaean is arch shaped.
C)  A bacillus is rod shaped.
D)  A spirillum is spherical.
E)  All of these are correct.F) B) and C)
G) A) and E)

Question 4

Latency is associated with which of the following?

Accepted Answer

A)  adenoviruses
B)  lysogenic pathways
C)  lytic pathways
D)  DNA viruses
E)  RNA virusesF) C) and D)
G) C) and E)

Question 5

Which of the following is NOT true of type I Herpes simplex?

Accepted Answer

A)  It is a DNA virus.
B)  It has a latent phase in its replication cycle.
C)  It remains in nerve cells for a time.
D)  Sunburn or other stress can activate it.
E)  Once activated it causes a form of skin cancer.F) A) and E)
G) A) and D) E

Question 6

In which of the following ways are archaeans similar to eukaryotic cells?

Accepted Answer

A)  size
B)  shape
C)  histones
D)  DNA polymerases
E)  presence of operonsF) B) and D)
G) A) and B)

Question 7

Which of the following is (are)  NOT involved in the reproduction of all viruses?

Accepted Answer

A)  attachment and penetration
B)  replication and synthesis
C)  assembly
D)  latency
E)  releaseF) All of the above
G) C) and D)

Question 8

Which disease is caused by an enveloped virus?

Accepted Answer

A)  hepatitis
B)  AIDS
C)  polio
D)  common colds
E)  wartsF) None of the above
G) B) and E)

Question 9

The first viroid was found in plants and was a

Accepted Answer

A)  circular DNA surrounded by protein.
B)  circular RNA surrounded by protein.
C)  circular DNA with no protein coat.
D)  circular RNA with no protein coat.
E)  none of the above.F) A) and C)
G) None of the above

Question 10

AIDS is short for

Accepted Answer

A)  Acquired Immune Deficiency Syndrome.
B)  Accelerated Immune Death Syndrome.
C)  Accentuated Induced Deficiency Syndrome.
D)  Advantageous Immunity Deficiency Syndrome.
E)  none of these.F) D) and E)
G) A) and B)

Question 11

Which of the following prokaryotic nutritional groups use organic substances for carbon and photons for energy?

Accepted Answer

A)  photoautotrophs
B)  chemoautotrophs
C)  photoheterotrophs
D)  chemoheterotrophs
E)  none of theseF) A) and B)
G) A) and C)

Question 12

Which of the following prokaryotic nutritional groups use CO2 and sunlight to produce energy?

Accepted Answer

A)  photoautotrophs
B)  chemoautotrophs
C)  photoheterotrophs
D)  chemoheterotrophs
E)  all of theseF) D) and E)
G) B) and D)

Question 13

The process by which bacterial cells transfer DNA is

Accepted Answer

A)  horizontal gene transfer.
B)  conjugation.
C)  transduction.
D)  transformation.
E)  all of these.F) A) and C)
G) A) and E)

Question 14

Theodore Diner was able to determine that viroids are composed of RNA by using which of the following techniques?

Accepted Answer

A)  cDNA library creation
B)  nucleotide sequencing
C)  chemical analysis
D)  treatment with enzymes that destroy RNA
E)  all of the aboveF) A) and B)
G) All of the above

Question 15

Which of the following does NOT characterize most prokaryotes?

Accepted Answer

A)  no nucleus
B)  a single circular chromosome
C)  cell wall
D)  complex internal membranes
E)  great metabolic diversityF) A) and B)
G) C) and D) D

Question 16

Which of the following prokaryotic nutritional groups use CO2 and inorganic substances to produce energy?

Accepted Answer

A)  photoautotrophs
B)  chemoautotrophs
C)  photoheterotrophs
D)  chemoheterotrophs
E)  none of theseF) All of the above
G) B) and E)

Question 17

Archaeans are similar to bacteria in all of the following ways EXCEPT

Accepted Answer

A)  size.
B)  shape.
C)  membrane phospholipids.
D)  absence of a nucleus.
E)  presence of operons.F) A) and D)
G) None of the above

Question 18

Gram-positive bacteria have __________ and appear __________ under the microscope.

Accepted Answer

A)  thick walls; pink
B)  thick walls; purple
C)  thin walls; pink
D)  thin walls; purple
E)  none of theseF) A) and C)
G) A) and B)

Question 19

Which of the following is NOT true concerning the spirochetes?

Accepted Answer

A)  Some live inside a host organism.
B)  Some form endospores that germinate in wounds.
C)  All are free-living.
D)  Some are pathogens carried by vectors.
E)  Some cause Lyme disease.F) D) and E)
G) B) and C)

Question 20

Plasmids

Accepted Answer

A)  are self-replicating circular molecules of DNA.
B)  may be transferred between prokaryotic cells of different species.
C)  may pick up genes from other prokaryotes.
D)  contains genes separate from the bacterial chromosome.
E)  fit all of these descriptions.F) A) and B)
G) A) and E)

Exam 21: Viruses and Prokaryotes

Most species of Gram-positive bacteria are

Correct AnswerverifiedD

The extreme thermophilic archaean Nanoarchaeum

Correct AnswerverifiedShow Answer

Which of the following is a correct description of a prokaryote shape?

Correct AnswerverifiedShow Answer

Latency is associated with which of the following?

Correct AnswerverifiedShow Answer

Which of the following is NOT true of type I Herpes simplex?

Correct AnswerverifiedE

In which of the following ways are archaeans similar to eukaryotic cells?

Correct AnswerverifiedShow Answer

Which of the following is (are) NOT involved in the reproduction of all viruses?

Correct AnswerverifiedShow Answer

Which disease is caused by an enveloped virus?

Correct AnswerverifiedShow Answer

The first viroid was found in plants and was a

Correct AnswerverifiedShow Answer

AIDS is short for

Correct AnswerverifiedShow Answer

Which of the following prokaryotic nutritional groups use organic substances for carbon and photons for energy?

Correct AnswerverifiedShow Answer

Which of the following prokaryotic nutritional groups use CO2 and sunlight to produce energy?

Correct AnswerverifiedShow Answer

The process by which bacterial cells transfer DNA is

Correct AnswerverifiedShow Answer

Theodore Diner was able to determine that viroids are composed of RNA by using which of the following techniques?

Correct AnswerverifiedShow Answer

Which of the following does NOT characterize most prokaryotes?

Correct AnswerverifiedD

Which of the following prokaryotic nutritional groups use CO2 and inorganic substances to produce energy?

Correct AnswerverifiedShow Answer

Archaeans are similar to bacteria in all of the following ways EXCEPT

Correct AnswerverifiedShow Answer

Gram-positive bacteria have __________ and appear __________ under the microscope.

Correct AnswerverifiedShow Answer

Which of the following is NOT true concerning the spirochetes?

Correct AnswerverifiedShow Answer

Plasmids

Correct AnswerverifiedShow Answer

Correct Answer
verified
D

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
E

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Which of the following prokaryotic nutritional groups use CO₂ and sunlight to produce energy?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
D

Which of the following prokaryotic nutritional groups use CO₂ and inorganic substances to produce energy?

Correct Answer
verified

Correct Answer
verified

Gram-positive bacteria have and appear under the microscope.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified