Comparison of the Two Reactions

Oct 13, 2025 by windailys.com 81 views

Reaction A: Photosynthesis

Chemical Equation

$6 \text{CO}_2(g) + 6 \text{H}_2\text{O}(l) + \text{sunlight} \rightarrow \text{C}_6\text{H}_{12}\text{O}_6(aq) + 6 \text{O}_2(g)$

Conclusion

This equation represents the process of photosynthesis, where carbon dioxide and water are converted into glucose and oxygen in the presence of sunlight. The reactants are carbon dioxide, water, and sunlight, while the products are glucose and oxygen.

Reaction B: Cellular Respiration

Chemical Equation

$\text{C}_6\text{H}_{12}\text{O}_6(aq) + 6 \text{O}_2(g) \rightarrow 6 \text{CO}_2(g) + 6 \text{H}_2\text{O}(l) + \text{energy}$

Conclusion

This equation represents the process of cellular respiration, where glucose and oxygen are converted into carbon dioxide and water, releasing energy in the process. The reactants are glucose and oxygen, while the products are carbon dioxide, water, and energy.

Comparison of the Two Reactions

Conclusion

By comparing the two chemical equations, we can conclude that:

Photosynthesis and cellular respiration are opposite processes: Photosynthesis produces glucose and oxygen from carbon dioxide and water, while cellular respiration produces carbon dioxide and water from glucose and oxygen.
Energy is released in cellular respiration: The energy released in cellular respiration is a result of the conversion of glucose and oxygen into carbon dioxide and water.
Sunlight is required for photosynthesis: The presence of sunlight is essential for the process of photosynthesis to occur.
Both reactions involve the conversion of carbon dioxide and water: Both photosynthesis and cellular respiration involve the conversion of carbon dioxide and water, but in opposite directions.

What can you conclude about these two reactions based on the chemical equations?

Conclusion

Based on the chemical equations, we can conclude that photosynthesis and cellular respiration are opposite processes that involve the conversion of carbon dioxide and water. Photosynthesis produces glucose and oxygen from carbon dioxide and water, while cellular respiration produces carbon dioxide and water from glucose and oxygen. The presence of sunlight is required for photosynthesis, and energy is released in cellular respiration.

Final Answer

The correct answer is:

Photosynthesis and cellular respiration are opposite processes.
Energy is released in cellular respiration.
Sunlight is required for photosynthesis.
Both reactions involve the conversion of carbon dioxide and water.

Frequently Asked Questions

Q1: What is the main difference between photosynthesis and cellular respiration?

A1: The main difference between photosynthesis and cellular respiration is that photosynthesis produces glucose and oxygen from carbon dioxide and water, while cellular respiration produces carbon dioxide and water from glucose and oxygen.

Q2: What is the role of sunlight in photosynthesis?

A2: Sunlight plays a crucial role in photosynthesis as it provides the energy required for the conversion of carbon dioxide and water into glucose and oxygen.

Q3: What is the byproduct of cellular respiration?

A3: The byproduct of cellular respiration is energy, which is released in the form of ATP (adenosine triphosphate).

Q4: What is the equation for photosynthesis?

A4: The equation for photosynthesis is:

$6 \text{CO}_2(g) + 6 \text{H}_2\text{O}(l) + \text{sunlight} \rightarrow \text{C}_6\text{H}_{12}\text{O}_6(aq) + 6 \text{O}_2(g)$

Q5: What is the equation for cellular respiration?

A5: The equation for cellular respiration is:

$\text{C}_6\text{H}_{12}\text{O}_6(aq) + 6 \text{O}_2(g) \rightarrow 6 \text{CO}_2(g) + 6 \text{H}_2\text{O}(l) + \text{energy}$

Q6: What is the relationship between photosynthesis and cellular respiration?

A6: Photosynthesis and cellular respiration are opposite processes that are connected in a cycle. Photosynthesis produces glucose and oxygen, which are then used in cellular respiration to produce energy.

Q7: What is the importance of photosynthesis?

A7: Photosynthesis is essential for life on Earth as it produces the oxygen that we breathe and the glucose that plants use to grow.

Q8: What is the importance of cellular respiration?

A8: Cellular respiration is essential for life on Earth as it provides the energy that cells need to function.

Q9: Can photosynthesis occur without sunlight?

A9: No, photosynthesis cannot occur without sunlight as it provides the energy required for the conversion of carbon dioxide and water into glucose and oxygen.

Q10: Can cellular respiration occur without oxygen?

A10: No, cellular respiration cannot occur without oxygen as it is a byproduct of the process.

Conclusion

Photosynthesis and cellular respiration are two essential processes that are connected in a cycle. Photosynthesis produces glucose and oxygen, while cellular respiration produces energy from glucose and oxygen. Understanding these processes is crucial for appreciating the importance of life on Earth.

Key Takeaways

Photosynthesis produces glucose and oxygen from carbon dioxide and water.
Cellular respiration produces energy from glucose and oxygen.
Sunlight is required for photosynthesis.
Oxygen is required for cellular respiration.
Photosynthesis and cellular respiration are opposite processes that are connected in a cycle.

Frequently Asked Questions (FAQs)

What is the main difference between photosynthesis and cellular respiration?
What is the role of sunlight in photosynthesis?
What is the byproduct of cellular respiration?
What is the equation for photosynthesis?
What is the equation for cellular respiration?
What is the relationship between photosynthesis and cellular respiration?
What is the importance of photosynthesis?
What is the importance of cellular respiration?
Can photosynthesis occur without sunlight?
Can cellular respiration occur without oxygen?