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The Daily Insight

What substances are needed for photosynthesis to occur

Author

Mia Kelly

Published Apr 13, 2026

To perform photosynthesis, plants need three things: carbon dioxide, water, and sunlight.

What are the 4 things needed for photosynthesis?

Glucose is why plants need photosynthesis. ​To review, the ingredients for photosynthesis are water, carbon dioxide​ ​and light energy. These things are converted by photosynthesis into oxygen and glucose.

What 5 things are needed for photosynthesis?

  • Chlorophyll. Chlorophyll, the pigment in plants that makes them green, is essential to the photosynthetic process. …
  • Sunlight. The process cannot work without an energy input, and this comes from the sun. …
  • Water. …
  • Carbon Dioxide.