Biology Question on energy flow through ecosystems

Question

Which of these include onlyautotrophs?

Answer 1

Solution

Autotrophic nutrition is a mode of nutrition in which organism build up their own organic substances from inorganic raw materials, i.e., they synthesise their own food with the help of chlorophyll. The organisms performing autotrophic nutrition are called autotrophs. Autotrophs require a source of energy for building organic substances. Most of the autotrophs use solar radiations and are hence called photoautotrophs. A few autotrophic bacteria obtain chemical energy by performing exergonic reactions. They are known as chemoautotrophs. As autotrophs are able to produce organic food, thus they are called producers. Autotrophs, mainly photoautotrophs, play an important role in ecosystem.