Bacteria and Viruses

Question 1

an organism of a single cell that does not have a nucleus

Answer 1

Prokaryote

Question 2

a rod-shaped bacterium

Answer 2

Bacilli

Question 3

any spherical or roughly spherical bacterium

Answer 3

Cocci

Question 4

a bacterium with a rigid spiral structure, found in stagnant water and sometimes causing disease

Answer 4

Spirilla

Question 5

a form of asexual reproduction in single-celled organisms by which one cell divides into two cells of the same size

Answer 5

Binary Fission

Question 6

a resistant asexual spore that develops inside some bacteria cells

Answer 6

Endospore

Question 7

the chemical processes by which atmospheric nitrogen is assimilated into organic compounds, especially by certain microorganisms as part of the nitrogen cycle

Answer 7

Nitrogen fixation

Question 8

the biological treatment of hazardous waste by living organisms

Answer 8

Bioremediation

Question 9

a medicine that inhibits the growth of or destroys microorganisms

Answer 9

Antibiotic

Question 10

weakens and destroys certain microorganisms

Answer 10

Pathogenic bacteria

Question 11

an infection or disease caused by a Virus

Answer 11

Virus

Question 12

a living cell in which a Virus multiplies

Answer 12

Host