13. Photosynthesis

The metabolic process photosynthesis occurs in which part of the bacterial cell?

Choose the correct definition of oxygenic photosynthesis:

Oxygen produced during oxygenic photosynthesis comes directly from:

Which of these answers illustrates a major difference between oxygenic and anoxygenic photosynthesis?

Unlike purple and green phototrophic bacteria, cyanobacteria

a. produce oxygen during photosynthesis.

b. do not require light.

c. use H₂S as an electron donor.

d. have a membrane-enclosed nucleus.

e. all of the above

Why do cyanobacteria and algae take in carbon dioxide and give off oxygen?

Microbes that reduce N₂ to NH₃ engage in nitrogen ___________ .

Chemolithotrophs acquire electrons from (organic/inorganic)___________ compounds.