You have recently discovered an organism that uses the sun’s energy to strip electrons from hydrogen sulfide, and uses the resultant energy to build organic molecules from sugars and proteins. Based on this description, you would class this organism as a: Question 14Select one: a. Chemoheterotroph. b. Photoautotroph. c. Chemoautotroph. d. Photoheterotroph.
Question
You have recently discovered an organism that uses the sun’s energy to strip electrons from hydrogen sulfide, and uses the resultant energy to build organic molecules from sugars and proteins.
Based on this description, you would class this organism as a:
Question 14Select one:
a. Chemoheterotroph.
b. Photoautotroph.
c. Chemoautotroph.
d. Photoheterotroph.
Solution
The organism described in the question uses the sun's energy, which means it is photosynthetic. However, instead of using water like most photosynthetic organisms, it uses hydrogen sulfide. This is a process of obtaining electrons, which is a characteristic of autotrophs. Autotrophs are organisms that can produce their own food from inorganic substances using light or chemical energy. So, this organism is a photoautotroph. Therefore, the correct answer is:
b. Photoautotroph.
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