Question

Cyanobacteria are believed to generate the majority of oxygen gas in Earth’s atmosphere. What allows them to produce oxygen?

Answer 1

Answer:

b. photosynthesis in which water photolysis produces H , e , and O2 is the correct answer.

Explanation:

• Cyanobacteria is the oxygenic microbes that produce oxygen by a process called photosynthesis.
• Photolysis is the process  by which water molecules split into oxygen and hydrogen during the light reaction of the photosynthesis process.

• Cyanobacteria produce their food by photosynthesis.

• Cyanobacteria has chlorophyll that converts carbon dioxide to sugar by carbon fixation.

• Cyanobacteria perform photosynthesis by using carbon dioxide, sunlight, and water to produce oxygen and carbohydrates.
• Thus cyanobacteria utilize the energy from light to split the water molecule and produces H, e , and O2.