Eukaryotic Algae

Eukaryotic algae are a diverse group of aquatic organisms that have complex cells with a nucleus, which contains their genetic material. Unlike bacteria, their cells are more organized and include structures like chloroplasts, enabling them to perform photosynthesis—the process of converting sunlight into energy. Found in oceans, lakes, and rivers, they range from tiny single-celled forms to larger, multicellular types like seaweeds. Eukaryotic algae play vital roles in ecosystems by producing oxygen, supporting aquatic food webs, and acting as key contributors to global carbon cycling.