Question

How many carbon atoms combine in the photosynthesis reaction?(1 point)
Responses

6
6

2
2

1
1

12
12

Answer 1

In the photosynthesis reaction, 6 carbon atoms are involved. The overall equation for photosynthesis is:

\[ 6 \, \text{CO}_2 + 6 \, \text{H}_2\text{O} \rightarrow \text{C}_6\text{H}_{12}\text{O}_6 + 6 \, \text{O}_2 \]

This indicates that 6 molecules of carbon dioxide (\( \text{CO}_2 \)) are used to produce one molecule of glucose (\( \text{C}_6\text{H}_{12}\text{O}_6 \)), which contains 6 carbon atoms.

So, the correct answer is **6**.