To determine the correct equation for cellular respiration, we need to identify the process where glucose (C₆H₁₂O₆) and oxygen (O₂) are converted into carbon dioxide (CO₂), water (H₂O), and energy. This is a fundamental biochemical process that occurs in living cells to generate usable energy in the form of ATP.
Step-by-Step Solution:
1. Identify the components involved in cellular respiration:
- Reactants: Oxygen (O₂) and Glucose (C₆H₁₂O₆)
- Products: Carbon Dioxide (CO₂), Water (H₂O), and Energy (usually represented as ATP)
2. Formulate the correct chemical equation:
- The general formula for cellular respiration can be summarized as:
[tex]\[
\text{Glucose} + \text{Oxygen} \rightarrow \text{Carbon Dioxide} + \text{Water} + \text{Energy}
\][/tex]
3. Balance the chemical equation:
- The balanced chemical equation for cellular respiration is:
[tex]\[
6 \, \text{O}_2 + \text{C}_6\text{H}_{12}\text{O}_6 \rightarrow 6 \, \text{CO}_2 + 6 \, \text{H}_2\text{O} + \text{Energy}
\][/tex]
- Here, 6 molecules of oxygen react with 1 molecule of glucose to produce 6 molecules of carbon dioxide and 6 molecules of water along with energy.
4. Analyze the given options to find a match:
- Option 1: [tex]\(6 \, \text{CO}_2 + 6 \, \text{H}_2\text{O} \rightarrow 6 \, \text{O}_2 + \text{C}_6\text{H}_{12}\text{O}_6 + \text{Energy}\)[/tex]
- Option 2: [tex]\(6 \, \text{O}_2 + \text{C}_6\text{H}_{12}\text{O}_6 \rightarrow 6 \, \text{CO}_2 + 6 \, \text{H}_2\text{O} + \text{Energy}\)[/tex]
- Option 3: [tex]\(6 \, \text{CO}_2 + 6 \, \text{H}_2\text{O} + \text{Energy} \rightarrow 6 \, \text{O}_2 + \text{C}_6\text{H}_{12}\text{O}_6\)[/tex]
- Option 4: [tex]\(6 \, \text{O}_2 + \text{C}_6\text{H}_{12}\text{O}_6 + \text{Energy} \rightarrow 6 \, \text{CO}_2 + 6 \, \text{H}_2\text{O}\)[/tex]
5. Verify the correct option matches the balanced equation:
- The balanced equation [tex]\(6 \, \text{O}_2 + \text{C}_6\text{H}_{12}\text{O}_6 \rightarrow 6 \, \text{CO}_2 + 6 \, \text{H}_2\text{O} + \text{Energy}\)[/tex] matches Option 2.
Therefore, the correct answer is:
[tex]\[ \boxed{2} \][/tex]
