Question 1

Choose letter of the best match from the following:
-Direct uptake of nucleic acid by a bacterium.

Accepted Answer

A)  conjugation
B)  plasmid
C)  transduction (generalized) 
D)  transduction (specialized) 
E)  transformation (artificial) F) transformation (natural) G) A) and B)
H) B) and F)

Question 2

Which of the following is not true about prokaryotes?

Accepted Answer

A)  They are the oldest organisms on Earth.
B)  They are the structurally simplest organisms.
C)  They are the most abundant life forms on Earth.
D)  They contain organelles.
E)  They are found in fossils that are 3.0-3.5 billion years old.F) B) and D)
G) A) and B)

Question 3

Plasmids are distinguished from bacterial chromosomes in that

Accepted Answer

A)  plasmids are circular,bacterial chromosomes are linear.
B)  plasmids occur in the cytoplasm,bacterial chromosomes occur in the nucleus.
C)  plasmids are composed of RNA,bacterial chromosomes are composed of DNA.
D)  plasmids have few genes,bacterial chromosomes have many genes.
E)  plasmids consist of single-stranded nucleic acids,bacterial chromosomes consist of double-stranded nucleic acids.F) A) and C)
G) All of the above

Question 4

Prokaryotes are very important ecologically because of their involvement in all of the following except

Accepted Answer

A)  photosynthesis.
B)  nitrogen fixation.
C)  STDs.
D)  denitrification.
E)  bioremediation.F) D) and E)
G) B) and C)

Question 5

A microbiologist is investigating the effects of cold on a particular bacterium.He notices that as the temperature approaches zero degrees Centigrade,the bacteria begin to

Accepted Answer

A)  form more pili.
B)  produce thicker cell membranes.
C)  secrete more peptidoglycans.
D)  form endospores.
E)  secrete lipopolysaccharides from their thicker cell membranes.F) All of the above
G) A) and B)

Question 6

Bacteria cause all of the following human diseases except

Accepted Answer

A)  cholerA.
B)  diphtheria.
C)  mononucleosis.
D)  tetanus.
E)  malaria.F) All of the above
G) None of the above

Question 7

Members of the genus ______________ are associated with scarlet fever,rheumatic fever,pneumonia,etc.

Accepted Answer

The answer of Members of the genus ______________ are associated...

Exam 28: Prokaryotes

Members of the genus ______________ are associated with scarlet fever,rheumatic fever,pneumonia,etc.

Correct Answer
verified

A microbiologist is investigating the effects of cold on a particular bacterium.He notices that as the temperature approaches zero degrees Centigrade,the bacteria begin to

Correct Answer
verified

Bacteria cause all of the following human diseases except

Correct Answer
verified

Which of the following is not true about prokaryotes?

Correct Answer
verified

Prokaryotes are very important ecologically because of their involvement in all of the following except

Correct Answer
verified

Choose letter of the best match from the following: -Direct uptake of nucleic acid by a bacterium.

Correct Answer
verified

Plasmids are distinguished from bacterial chromosomes in that

Correct Answer
verified

Exam 28: Prokaryotes

Members of the genus ______________ are associated with scarlet fever,rheumatic fever,pneumonia,etc.

Correct AnswerverifiedShow Answer

A microbiologist is investigating the effects of cold on a particular bacterium.He notices that as the temperature approaches zero degrees Centigrade,the bacteria begin to

Correct AnswerverifiedShow Answer

Bacteria cause all of the following human diseases except

Correct AnswerverifiedShow Answer

Which of the following is not true about prokaryotes?

Correct AnswerverifiedShow Answer

Prokaryotes are very important ecologically because of their involvement in all of the following except

Correct AnswerverifiedShow Answer

Choose letter of the best match from the following: -Direct uptake of nucleic acid by a bacterium.

Correct AnswerverifiedShow Answer

Plasmids are distinguished from bacterial chromosomes in that

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
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Correct Answer
verified

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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