Scientists used radioactive hydrogen to make water. They grew plants using the radioactive water. What happened to the radioactive hydrogen during photosynthesis

During photosynthesis, plants use light energy to convert carbon dioxide and water into glucose (a sugar molecule) and release oxygen as a byproduct. The radioactive hydrogen present in the water would likely remain intact and become part of the glucose molecule produced during photosynthesis. As glucose is the primary source of energy for plants and various cellular processes, the radioactive hydrogen would be distributed throughout the plant and incorporated into various biomolecules.