Question Detail
Question
In this type of autotrophic nutrition, primitive autotrophic prokaryotes used chemical (glycolytic) energy to make carbohydrates from H2S and CO2.
Correct Answer
Option C is the correct answer.
Detailed Explanation
Chemosynthesis is a process by which some organisms, often prokaryotes, use chemical energy (from the oxidation of inorganic compounds like H2S) to produce organic compounds, rather than light energy (photosynthesis). Holozoic and heterotrophic describe modes of nutrition where organisms consume other organisms or organic matter.
Hint
Consider the source of energy used by organisms that do not use sunlight for food production.