Multiple choice The type of bacteria which lives by absorbing the energy from sun is called _____? Phototrophs Autotrophs Allotrophs Menotrophs Reveal answer Fill a bubble to check yourself A Correct answer Explanation Phototrophs are organisms that absorb energy from the sun to carry out cellular processes. This includes photosynthetic bacteria that use light energy to synthesize organic compounds from carbon dioxide, such as cyanobacteria and purple bacteria.