Prokaryotes quiz questions

Question 1

Prokaryotes in a ________ state have experienced stress and respond by “shutting down” but not dying.

Answer 1

viable-but-non-culturable

Question 2

Organisms such as ________ are adapted to survive extreme environments but do not prefer this type of environment.

Answer 2

radioresistant prokaryotes

Question 3

________ are held together by polysaccharide matrix.

Answer 3

Biofilms

Question 4

The earliest records of life on Earth are ________.

Answer 4

stromatolites

Question 5

Microbial mats obtained their energy from ________.

Answer 5

hydrothermal vents

Question 6

________ are able to grow and thrive under conditions that would kill most other organisms.

Answer 6

Extremophiles

Question 7

Free-living prokaryotes are known as ________.

Answer 7

planktonic

Question 8

________ live and thrive in extremely low temperatures.

Answer 8

Psychrophiles

Question 9

________ are divided into two major groups based on cell wall structure.

Answer 9

Bacteria

Question 10

________ in prokaryotes enables the direct exchange of genetic information between two cells.

Answer 10

Conjugation

Question 11

The cell walls of ________ are composed mainly of peptidoglycan.

Answer 11

Bacteria

Question 12

The nucleoid is ________.

Answer 12

an accumulation of prokaryotic DNA

Question 13

The ________ in Archaea is different from that of all other domains of life.

Answer 13

cell membrane

Question 14

Much of the recycling of ________ from organic compounds in carried out by prokaryotes.

Answer 14

Nitrogen

Question 15

________ is a micronutrient used as an enzyme cofactor by some prokaryotes.

Answer 15

Boron

Question 16

Which metabolic strategy would be common in extremophiles?

Answer 16

chemoautotrophy

Question 17

Which of the following statements is true about nitrogen?

Answer 17

It presents 12 percent of the dry weight of cells and is a major component of proteins and nucleic acids.

Question 18

Much of the recycling of ________ from organic compounds in carried out by prokaryotes.

Answer 18

nitrogen

Question 19

The process of ________ captures inorganic carbon in the form of organic compounds.

Answer 19

carbon fixation

Question 20

Ammonification is the process of ________.

Answer 20

releasing ammonia during decomposition of nitrogen-containing organic compounds

Question 21

The Plague of Athens, which weakened Athens’ dominance and world power, was likely an epidemic of ________.

Answer 21

typhoid fever

Question 22

An increasingly dangerous strain of antibiotic-resistant bacteria is ________.

Answer 22

methicillin-resistant Staphylococcus aureus

Question 26

The largest reservoir of available ________ in terrestrial ecosystems is found in land plants.

Answer 26

Carbon

Question 27

Biofilms are responsible for many foodborne illnesses because ________.

Answer 27

once they colonize food-processing equipment, they are difficult to eradicate