All microbial phototrophs
A) fix carbon dioxide.
B) use water as an electron donor for photosynthesis.
C) fix carbon dioxide and use water as an electron donor for photosynthesis.
D) use light energy to drive electron transport to generate energy.

Question

Quizplus · Accepted Answer

Microbial phototrophs use light energy to drive electron transport to generate energy, which is a fundamental characteristic of phototrophic organisms. Not all microbial phototrophs fix carbon dioxide or use water as an electron donor for photosynthesis, as these traits can vary among different types of phototrophs.

All Microbial Phototrophs