chapter 10

Question 1

prokaryote

Answer 1

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

Question 2

bacilli

Answer 2

a bacteria that is shaped like a rod.

Question 3

cocci

Answer 3

a bacteria that is spherical in shape

Question 4

spirilla

Answer 4

a bacteria that is shaped like a spiral

Question 5

binary fission

Answer 5

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

Question 6

endospore

Answer 6

a thick-walled protective spore that forms inside a bacterial cell and resists harsh conditions.

Question 7

nitrogen fixation

Answer 7

take in nitrogen from the air and change it to a form that plants can use.

Question 8

bioremediation

Answer 8

the biological treatment of hazardous waste by living organisms.

Question 9

antibiotic

Answer 9

medicine used to kill bacteria and other microoganisms

Question 10

pathogenic bacteria

Answer 10

bacteria that cause disease.

Question 11

virus

Answer 11

a microscopic particle that gets inside a cell and often destroys the cell

Question 12

host

Answer 12

an organism from which a parasite takes food or shelter