Question

question 2
early investigators thought the oxygen produced by photosynthetic plants came from carbon dioxide (co₂). in fact, it comes from
atp
glucose
nadp+
the atmosphere
water

Explanation:

In the process of photosynthesis, water is split in the light - dependent reactions. The oxygen atoms in water are released as molecular oxygen. Carbon dioxide is used to form carbohydrates during the Calvin cycle and is not the source of the oxygen produced. ATP, glucose, and NADP+ are involved in different aspects of photosynthesis but are not the source of oxygen. The atmosphere is not the source of oxygen produced by plants during photosynthesis.

Answer:

E. Water