Question

Which number remains unchanged during photosynthesis?(1 point)
Responses

the number of water molecules
the number of water molecules

the number of carbon atoms
the number of carbon atoms

the number of glucose molecules
the number of glucose molecules

the number of carbon dioxide molecules

Answer 1

During photosynthesis, the number of carbon atoms remains unchanged. In the overall process of photosynthesis, carbon dioxide (CO₂) is taken in and glucose (C₆H₁₂O₆) is produced, but the total number of carbon atoms involved in the reaction is conserved.

So, the correct answer is:

**the number of carbon atoms**