Chapter 7 Root Words

Question 1

Troph-

Answer 1

Food, nourishment

ex: Trophozoite- the feeding stage of protozoa

Question 2

-phile

Answer 2

To Love

ex: Extremeophile- an organism that has adapted to (“loves”) extreme environmets

Question 3

-obe

Answer 3

To Live

ex: Microbe- to “live small”

Question 4

Hetero-

Answer 4

Other

ex: Heterotroph- an organism that requires nutrients from other organisms

Question 5

Auto-

Answer 5

Self

ex: Autotroph- an organism that “feeds by itself”

Question 6

Photo-

Answer 6

Light

ex: Phototroph- an organism that uses light as an energy source

Question 7

Chemo-

Answer 7

Chemical

ex: Chemotroph- an organism that uses chemicals rather than light for energy

Question 8

Sapro-

Answer 8

Rotten

ex: Saprobe- an organism that lives on dead organic matter

Question 9

Halo-

Answer 9

Salt

ex: Halophile- an organism that can grow in high-salt environments

Question 10

Thermo-

Answer 10

Heat

ex: Thermophile- an organism that grows at high temperatures

Question 11

Psychro-

Answer 11

Cold

ex: Psychrophile- an organism that grows at cold temperatures

Question 12

Aero-

Answer 12

Air (O2)

ex: Aerobe- an organism that uses oxygen in metabolism