Final answer:
The balanced chemical equation for photosynthesis is 6CO₂ + 6H₂O + Energy → C6H12O6 + 6O₂. Photosynthesis and cellular respiration are interconnected processes that ensure the flow of carbon within the atmosphere and biosphere. So the correct option is a.
Step-by-step explanation:
The balanced chemical equation for photosynthesis is the conversion of carbon dioxide and water into glucose and oxygen, utilizing energy from sunlight. The proper equation is given by 6CO₂ + 6H₂O + Energy → C6H12O6 + 6O₂. So, the correct answer to the question, 'Which of the following is the balanced chemical equation for photosynthesis?' is option (a).
Photosynthesis and cellular respiration are reciprocal processes. Photosynthesis converts CO₂ and H₂O into glucose and oxygen, which are necessary for cellular respiration. In turn, cellular respiration converts glucose back into CO₂ and H₂O, releasing energy for organisms to use, and this carbon dioxide returns to the atmosphere when we breathe out.