Question

which of the following correctly represents the overall chemical equation for photosynthesis?
● c6h12o6 + o2 → co2 + h2o + energy
● co2 + h2o + sunlight → c6h12o6 + o
● o2 + glucose → co2 + water
● c6h12o6 + h2o → co2 + atp

Explanation:

Photosynthesis is the process by which plants use carbon - dioxide and water, in the presence of sunlight, to produce glucose and oxygen. The correct equation is $\text{CO}_2+\text{H}_2\text{O}+\text{sunlight}
ightarrow\text{C}_6\text{H}_{12}\text{O}_6 + \text{O}_2$. Among the given options, the second one $\text{CO}_2+\text{H}_2\text{O}+\text{sunlight}
ightarrow\text{C}_6\text{H}_{12}\text{O}_6+\text{O}$ is closest (although it should be $\text{O}_2$ instead of just $\text{O}$). The other options represent respiration or incorrect reactions.

Answer:

$\text{CO}_2+\text{H}_2\text{O}+\text{sunlight}
ightarrow\text{C}_6\text{H}_{12}\text{O}_6+\text{O}$ (with the understanding that it should be $\text{O}_2$)