Which are the reactants of photosynthesis? (1 point)
• СО2 + H20+ ATP
066H1206 + 02
• CO2 + H20
0 C6H12°6 + 60г
The reactants of photosynthesis are carbon dioxide (CO2) and water (H2O). The correct answer from the options provided is: CO2 + H2O.
To explain how to arrive at this answer, let's analyze the options:
Option 1: СО2 + H2O + ATP
ATP is not a reactant of photosynthesis. ATP is actually a high-energy molecule that is produced during the light-dependent reactions of photosynthesis and is used in the subsequent light-independent reactions (also known as the Calvin cycle) to convert carbon dioxide into glucose. Therefore, this option is incorrect.
Option 2: 066H1206 + 02
The combination 066H1206 does not represent a valid chemical formula. Additionally, oxygen (O2) is not a reactant of photosynthesis. Oxygen is actually produced as a byproduct of photosynthesis during the light-dependent reactions. Therefore, this option is incorrect.
Option 3: CO2 + H2O
This combination represents carbon dioxide and water, which are the reactants of photosynthesis. Carbon dioxide is obtained from the atmosphere, while water is taken up by the plant roots. These reactants are essential for the synthesis of glucose (C6H12O6), which is a product of photosynthesis, along with the release of oxygen (O2). Therefore, this option is correct.
In conclusion, the reactants of photosynthesis are carbon dioxide (CO2) and water (H2O), and the correct answer is: CO2 + H2O.