Here is the completed passage with all blanks filled in, based on the diagram and biological principles of photosynthesis and cellular respiration:
---
Cellular Respiration and Photosynthesis
Cellular respiration and photosynthesis are interdependent. In a plant, before it can perform cellular respiration, it must make food through
photosynthesis. Photosynthesis transforms light energy into
chemical energy. To do this, it needs
carbon dioxide from the air,
water from the soil, and
sunlight (or solar energy). The chemical energy is stored in the food it produces —
glucose (or sugar). With the
glucose formed from photosynthesis, it can then break that molecule down through the process of cellular respiration.
The
glucose (or food) and
oxygen from the air, combine in aerobic cellular respiration. This process releases gaseous
carbon dioxide, liquid
water, and energy in the form of
ATP (and heat).
---
✔ Explanation:
This diagram illustrates the
cycle between photosynthesis and cellular respiration in plants:
#### 🌞
Photosynthesis (occurs in chloroplasts):
-
Inputs: Sunlight (energy), carbon dioxide (CO₂) from air, water (H₂O) from soil.
-
Process: Converts light energy into chemical energy stored in glucose (C₆H₁₂O₆).
-
Outputs: Glucose (food) + oxygen (O₂) as a byproduct.
> *Equation*:
> 6CO₂ + 6H₂O + sunlight → C₆H₁₂O₆ + 6O₂
#### 🔥
Cellular Respiration (occurs in mitochondria):
-
Inputs: Glucose (from photosynthesis) + oxygen (from air or released during photosynthesis).
-
Process: Breaks down glucose to release usable energy (ATP) for cell activities.
-
Outputs: Carbon dioxide (CO₂), water (H₂O), and energy (ATP + heat).
> *Equation*:
> C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + ATP (energy)
---
💡 Key Takeaway:
These two processes are
interdependent — photosynthesis makes the food and oxygen needed for respiration, and respiration releases the CO₂ and water needed for photosynthesis. Together, they form a continuous cycle that sustains life in plants and indirectly supports animals too.
Let me know if you’d like a labeled diagram or a simplified version for younger learners!
Parent Tip: Review the logic above to help your child master the concept of cellular respiration and photosynthesis worksheet.
