Question

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

the number of carbon dioxide molecules
the number of carbon dioxide molecules
the number of carbon atoms
the number of carbon atoms
the number of glucose molecules
the number of glucose molecules
the number of water molecules

Answer 1

The number that remains unchanged during photosynthesis is **the number of carbon atoms**. In the process of photosynthesis, carbon dioxide is taken in and carbon atoms are incorporated into glucose, but the total number of carbon atoms remains constant when considering the overall matter balance.