alleryStart learning →How do chemoautotrophic bacteria obtain the energy they need to synthesise sugars?
AFrom inorganic chemical compounds
BFrom eating other living organisms
CFrom heat given off by the sun
DFrom sunlight absorbed by pigments
Answer & Solution
Correct answer: A. From inorganic chemical compounds
1. A third group of bacteria synthesise sugars without using the energy of sunlight.
2. They extract energy from inorganic chemical compounds instead.
3. For that reason they are referred to as chemoautotrophs.
4. Thermophilic bacteria at deep sea vents are an example of this way of life.
_Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 8 "Photosynthesis", section 8.1 Overview of Photosynthesis_
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