In photosynthesis plants make their own food like glucose with simple inorganic materials but in respiration organic food like glucose break down to produce inorganic materials.

Introduction
Respiration and photosynthesis are vital biological processes that sustain life on Earth. They serve different functions and occur in different organisms.
Process Overview
- Photosynthesis: This process occurs in plants, algae, and some bacteria. It converts light energy into chemical energy stored in glucose.
- Respiration: This process takes place in nearly all living organisms, including plants and animals. It converts glucose and oxygen into energy, releasing carbon dioxide and water as byproducts.
Key Differences
- Energy Source:
- Photosynthesis uses sunlight as its primary energy source.
- Respiration relies on the chemical energy stored in glucose.
- Location:
- Photosynthesis occurs in chloroplasts, primarily in leaves.
- Respiration occurs in mitochondria, found in nearly all cells.
- Chemical Equation:
- Photosynthesis: Carbon dioxide + Water + Light energy → Glucose + Oxygen.
- Respiration: Glucose + Oxygen → Carbon dioxide + Water + Energy (ATP).
Purpose of Each Process
- Photosynthesis:
- Produces glucose, which serves as food for plants and, indirectly, for animals.
- Releases oxygen, which is essential for aerobic respiration in living organisms.
- Respiration:
- Breaks down glucose to release energy (ATP) required for cellular functions.
- Utilizes oxygen and releases carbon dioxide, contributing to the carbon cycle.
Conclusion
In summary, respiration and photosynthesis are interconnected yet distinct processes essential for energy transfer in ecosystems. While photosynthesis captures energy, respiration releases it, ensuring the survival of various life forms.