Give the balanced chemical equation for Cellular Respiration (all balanced chemical equations require states for full credit)
Solid glucose (C6H120) & oxygen gas react to product carbon dioxide and water vapor •
The Correct Answer and Explanation is :
Balanced Chemical Equation for Cellular Respiration:
[
C_6H_{12}O_6 (s) + 6O_2 (g) \rightarrow 6CO_2 (g) + 6H_2O (g)
]
Explanation (300 words)
Cellular respiration is the biochemical process by which cells convert glucose into usable energy (ATP) through a series of metabolic pathways. The overall reaction represents aerobic respiration, which requires oxygen.
Breaking Down the Equation:
- Reactants:
- Glucose (C₆H₁₂O₆) (s): A solid organic molecule that acts as the primary energy source.
- Oxygen (O₂) (g): A gaseous molecule required for aerobic respiration.
- Products:
- Carbon dioxide (CO₂) (g): A gaseous waste product expelled during exhalation.
- Water vapor (H₂O) (g): Water in gaseous form, another byproduct.
Balancing the Equation:
- Glucose consists of 6 carbon atoms, 12 hydrogen atoms, and 6 oxygen atoms.
- Oxygen gas ((O_2)) is added as a reactant.
- The products include carbon dioxide and water vapor.
To balance:
- Carbon atoms: 6 from glucose → 6 CO₂ molecules.
- Hydrogen atoms: 12 from glucose → 6 H₂O molecules.
- Oxygen atoms: 6 O₂ molecules (12 oxygen atoms) + 6 from glucose = 6 CO₂ (12 oxygen atoms) + 6 H₂O (6 oxygen atoms).
Importance of Cellular Respiration:
- This reaction releases energy (ATP), which is essential for cellular functions.
- Occurs in the mitochondria of eukaryotic cells.
- Helps maintain homeostasis by converting chemical energy into a usable form.
Overall, this balanced equation represents the complete oxidation of glucose in the presence of oxygen, producing energy, carbon dioxide, and water.