The chemical equation below summarizes the process of photosynthesis.

[tex]\[ 6 CO_2 + 6 H_2O + \text{energy} \rightarrow 6 O_2 + C_6H_{12}O_6 \][/tex]

Which is the main source of energy that is shown in the equation?

A. soil
B. sun
C. ATP
D. glucose



Answer :

To determine the main source of energy in the process of photosynthesis as presented in the equation:

[tex]\[ 6 CO_2 + 6 H_2O + \text{energy} \rightarrow 6 O_2 + C_6H_{12}O_6 \][/tex]

we need to analyze the components involved in the reaction.

1. Soil: Soil is not involved in the chemical equation. It does provide nutrients and minerals for plant growth, but it is not a source of energy in the photosynthesis process described by this equation.

2. Sun: This is a strong candidate because photosynthesis typically uses sunlight as its main source of energy. In the natural world, plants absorb sunlight using chlorophyll and convert it into chemical energy through this reaction.

3. ATP: Adenosine triphosphate (ATP) is an energy carrier within cells. While ATP is involved in energy transfer in cells, it is not the external source of energy that drives the photosynthesis process as described in this equation.

4. Glucose: Glucose (C_6H_{12}O_6) is actually one of the products of the photosynthesis reaction, not a source of energy input. It is the carbohydrate produced as a result of the energy conversion process.

Given the context of the equation and the typical knowledge of the photosynthesis process, the primary source of energy is indeed:

Sun

So, the main source of energy shown in the equation is the sun.