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Scientists used radioactive hydrogen to make water. They grew plants using the radioactive water. What happened to the radioactive hydrogen during photosynthesis?(1 point)
Responses
It was recycled when glucose was formed.
It was recycled when glucose was formed.
It was recycled when water was formed.
It was recycled when water was formed.
It was recycled when light energy was formed.
It was recycled when light energy was formed.
It was recycled when hydrogen gas was formed.
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It was recycled when glucose was formed.
Explanation: During the light reactions water is split and its hydrogen atoms (electrons/protons) are used to reduce CO2 in the Calvin cycle, so the radioactive H ends up incorporated into glucose.
Explanation: During the light reactions water is split and its hydrogen atoms (electrons/protons) are used to reduce CO2 in the Calvin cycle, so the radioactive H ends up incorporated into glucose.
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