- During the day, green plants: 1) Perform photosynthesis.
2) Respire.
3) Perform photosynthesis and res
With photosynthesis, the air is
in:
1) Oz
2) CO2
3) Both gases​

What is one reason why transpiration is important in plants? question 19 options: it produces food from the sugar in the plant cells. it enables the flow of water out of the plant. it produces carbon dioxide in the leaves of the plant.