The photosynthesisers in the experimental pond produced oxygen at surprising rates.

The young sapling photosynthesises rapidly after sunrise, storing energy for growth.

By the end of the afternoon, the algae in the pond had photosynthesised enough oxygen to sustain the small fish.

The potted plant was photosynthesising on the sunny windowsill, producing oxygen and glucose.

Many houseplants photosynthesise more during the long summer days.

The artificial photosynthesiser in the lab converts sunlight into fuel more efficiently than algae.