Question

Which of the following is released during photosynthesis? A) oxygen. B) carbon dioxide. C) Light. D) energy

Answer 1

`"A) and D)"` are both correct.

Explanation:

The chemical equation for photosynthesis is:

`6CO_2(g)+6H_2O(l)stackrel("sunlight")stackrel("chlorophyll")->C_6H_12O_6(aq)+6CO_2(g)`

So from here, we see that carbon dioxide and water are used, in the presence of light and chlorophyll, so that eliminates options `"B)"` and `"C)"`.

`"A)"` is a correct answer because oxygen gas is present on the reactants side of the equation.

But wait, there's more! Glucose is eventually converted into pyruvic acid, and then adenosine triphosphate `("ATP")`, which is the main energy carrier in all cells, so technically, `"D)"` is also correct.

In conclusion, I say that both `"A)"` and `"D)"` are correct answers.