1. Phototroph
From Wikipedia, the free encyclopedia
This article is about phototrophism, obtaining energy from light. For the tropism that governs
growth toward or away from a light source, see Phototropism.
Terrestrial and aquatic phototrophs: Plants grow on a fallen log floating in algae-rich water.
Phototrophs (Gr: φῶς, φωτός = light, τροϕή = nourishment) are the organisms that carry out
photon capture to acquire energy. They use the energy from light to carry out various cellular
metabolic processes.