Question

Cyanobacteria obtain energy from:

- parasitizing viruses.

- digesting benzene.

- sunlight.

- digesting plants.

- digesting cyanide.

Answer 1

Cyanobacteria obtain energy from "sunlight."

Cyanobacteria are photosynthetic microorganisms that can convert sunlight into chemical energy through the process of photosynthesis. They possess pigments such as chlorophyll that allow them to capture sunlight and use it to produce energy-rich molecules, such as glucose, through the conversion of carbon dioxide and water. This process is similar to the photosynthesis performed by plants and algae. Cyanobacteria are unique among bacteria in their ability to carry out oxygenic photosynthesis, releasing oxygen as a byproduct. This capability makes cyanobacteria important contributors to the oxygenation of Earth's atmosphere.