Bacteria — Unit test

Question 1

Which scientist developed the idea that microorganisms can cause diseases?

Revolt · Accepted Answer

Louis Pasteur

Question 2

Fast reproduction by binary fission enables bacteria to

Revolt · Accepted Answer

cause infections in other organisms.

Question 3

Which mode of genetic recombination is matched correctly with its description?

Revolt · Accepted Answer

transduction—virus transfers genes from one bacteria to another

Question 4

What is the advantage of genetic recombination as a mode of reproduction in bacteria?

Revolt · Accepted Answer

greater genetic variation

Question 5

Which bacterial form can be curved like a spiral, thick and rigid, or thin and flexible?

Revolt · Accepted Answer

spirillum

Question 6

Which form of bacteria is matched correctly to its description?

Revolt · Accepted Answer

coccus—can cause MRSA and has a round shape

Question 7

Which type of bacterial reproduction involves the donation of a single strand of plasmid DNA from one bacterial cell to another?

Revolt · Accepted Answer

conjugation

Question 8

Which series lists the correct order of steps of binary fission from first to last?

Revolt · Accepted Answer

DNA is copied ® DNA molecules attach to cell membrane ® cell membrane elongates and pinches off ® two identical cells are produced

Question 9

Consider this microscopic image of bacteria.Based on its shape, what is most likely the form of this bacteria?

Revolt · Accepted Answer

bacillus

Question 10

Which scientist devised tests that helped confirm that bacteria and other microorganisms cause a variety of diseases?

Revolt · Accepted Answer

Robert Koch

Bacteria — Unit test Answers