Chapter 26.2-26.3

Question 1

oxygen producing

Answer 1

oxygenic

Question 2

oxygen utilizing

Answer 2

aerobic

Question 3

not producing oxygen

Answer 3

anoxygenic

Question 4

light-harvesting pigment closely related to the chlorophyll found in plants, algae, and cyanobacteria

Answer 4

bacteriochlorophyll

Question 5

the partial oxidation of complex carbon molecules to molecules that are less oxidized than carbon dioxide

Answer 5

fermentation

Question 6

organism that uses energy from sunlight to make ATP and relies on organic molecules obtained from the environment as the source of carbon for growth and other vital functions

Answer 6

photoheterotrophs

Question 7

a microorganism that obtain energy from chemical compounds, not from sunlight

Answer 7

chemoautotrophs

Question 8

the process in which plants take up sulfate ions from the soil and reduce them within their cells to hydrogen sulfide that can be incorporated into cysteine and other biomolecules

Answer 8

assimilation

Question 9

the process in which nitrogen gas is converted into ammonia

Answer 9

nitrogen fixation

Question 10

the process by which chemoautotrophic bacteria oxidize ammonia to nitrate

Answer 10

nitrification

Question 11

the oxidation of ammonium ion to nitrogen gas and the reduction of nitrite to nitrogen gas, with water produced as a by-product.

Answer 11

anammox