Final answer:
The statement regarding oxygen from water ending up in carbohydrates after photosynthesis is false. The statement is false.
Step-by-step explanation:
The statement that oxygen in the water within a leaf would end up in carbohydrates after photosynthesis is false. During photosynthesis, water molecules are split to release oxygen, which is then expelled as a byproduct.
The process primarily uses carbon dioxide, along with water, to construct carbohydrates. Oxygen from H2O does not become part of the carbohydrate product.
A more accurate description of the process is that hydrogen is added to carbon dioxide, or that carbon dioxide is reduced, to form carbohydrates, and oxygen is released as a waste product.
The primary reactants involved in photosynthesis are water, carbon dioxide, ATP, and NADPH, while the main products are carbohydrates, specifically G3P, and oxygen.