Root System Brings in Water The plant draws water from the soil up through its root system. The water is then transported up to the leaves by special plant cells called xylem. Plants lose some water when other natural processes occur, and some water is used during the photosynthesis process.
Stomata Receive Carbon Dioxide The plant has special cells called stomata which open and close. It is through the stomata that the plant takes carbon dioxide in and releases oxygen molecules formed during the chemical reaction of photosynthesis. Plants also lose a lot of water while gas exchange is taking place.