Can photosynthesis occur without sunlight?

Can photosynthesis occur without sunlight?

Photosynthesis primarily requires sunlight, but some organisms can perform a similar process using alternative light sources.

What are those organisms that can photosynthesize without sunlight?

Certain bacteria, like purple and green sulfur bacteria, can use chemical energy instead of sunlight for photosynthesis.

How do these bacteria perform photosynthesis?

They utilize light from other sources or chemical reactions to convert carbon dioxide and water into glucose and oxygen.

Is this process efficient compared to regular photosynthesis?

It's generally less efficient than sunlight-driven photosynthesis, but it allows survival in low-light environments.

Can you give examples of environments where this occurs?

These bacteria are often found in deep-sea vents, hot springs, and other extreme environments where sunlight is scarce.