The functions that will be most immediately affected by a reduction in water uptake by roots would be Photosynthesis and Sunlight Absorption.
Water and plant
Water constitutes approximately 90% of the plant weight, acting in practically all physiological and biochemical processes. It serves as a
- Solvent
- Through which gases
- Minerals
- and other solutes
Enter cells and move through the plant. It also has an important role in the thermal regulation of the plant, acting both in cooling and in the maintenance and distribution of heat. If a plant's soil has too much water, the roots can rot and the species doesn't get enough oxygen from the soil.
With this information, we can conclude that water is used for chemical and biochemical processes supporting metabolism, which uses sunlight to split the content into hydrogen and oxygen.
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