Photosynthesis

Definitions

1. Any process by which plants and other photoautotrophs convert light energy into chemical energy.
   uncountable, usually
2. Principally, oxygenic photosynthesis, any process by which plants and algae convert water and carbon dioxide into carbohydrates and waste oxygen using solar energy.
   uncountable, usually
3. Also, nonoxygenic photosynthesis, used by purple and green bacteria, heliobacteria, and acidobacteria.
   uncountable, usually

Equivalents

Examples

“Oxygen levels on Earth skyrocketed 2.4 billion years ago, when cyanobacteria evolved photosynthesis: the ability to convert water and carbon dioxide into carbohydrates and waste⟳ oxygen using solar energy.”

CEFR level