Photosynthesis and Respiration Model - Free Printable
Educational worksheet: Photosynthesis and Respiration Model. Download and print for classroom or home learning activities.
PNG
888×708
235.8 KB
Free · Personal Use
Quality Assured by Worksheets Library Team
Reviewed for educational accuracy and age-appropriateness
ID: #1449315
⭐
Show Answer Key & Explanations
Step-by-step solution for: Photosynthesis and Respiration Model
▼
Show Answer Key & Explanations
Step-by-step solution for: Photosynthesis and Respiration Model
The image illustrates the two key biological processes in plants: photosynthesis and cellular respiration, showing how they are interconnected in a cycle. Let's break it down and solve the problem by explaining each part and the relationship between them.
---
Location: Chloroplast
Inputs:
- Carbon dioxide (CO₂)
- Water (H₂O)
- Sunlight (energy)
Process:
In the presence of sunlight, chlorophyll in the chloroplasts captures light energy and uses it to convert CO₂ and H₂O into glucose (C₆H₁₂O₆) and oxygen (O₂).
Chemical Equation:
\[
6CO_2 + 6H_2O + \text{energy} \rightarrow C_6H_{12}O_6 + 6O_2
\]
Outputs:
- Glucose (used for energy or stored)
- Oxygen (released into the atmosphere)
---
Location: Mitochondrion
Inputs:
- Glucose (C₆H₁₂O₆)
- Oxygen (O₂)
Process:
Cells break down glucose in the presence of oxygen to produce energy in the form of ATP (adenosine triphosphate), along with carbon dioxide and water as waste products.
Chemical Equation:
\[
C_6H_{12}O_6 + 6O_2 \rightarrow 6CO_2 + 6H_2O + \text{energy (ATP)}
\]
Outputs:
- Energy (ATP) – used for cellular activities
- Carbon dioxide (CO₂)
- Water (H₂O)
---
This diagram shows a closed-loop system:
1. Photosynthesis produces glucose and O₂, which are used in respiration.
2. Respiration produces CO₂ and H₂O, which are used again in photosynthesis.
3. The sunlight provides the initial energy input for photosynthesis.
4. The mitochondrion uses the glucose from photosynthesis to generate usable energy (ATP).
5. The chloroplast uses CO₂ and H₂O (from respiration) to make more glucose.
---
- Plants perform both photosynthesis and respiration.
- Photosynthesis stores energy from sunlight in glucose.
- Respiration releases that stored energy for use by the cell.
- These processes are complementary and essential for life.
---
> This diagram demonstrates the interconnection between photosynthesis and cellular respiration in plant cells. The products of one process become the reactants of the other:
>
> - Photosynthesis: CO₂ + H₂O → Glucose + O₂ (using sunlight)
> - Respiration: Glucose + O₂ → CO₂ + H₂O + Energy (ATP)
>
> Together, they form a continuous cycle where energy is captured, stored, and released, sustaining life.
---
✔ Final Answer:
The diagram shows that photosynthesis and cellular respiration are complementary processes that recycle matter (CO₂, H₂O, glucose, O₂) and transfer energy in ecosystems. In plants, chloroplasts capture light energy to produce glucose and oxygen, while mitochondria use glucose and oxygen to produce ATP, releasing CO₂ and water — which are reused in photosynthesis. This creates a sustainable energy and material cycle.
---
🔹 Photosynthesis (Top Part of Diagram)
Location: Chloroplast
Inputs:
- Carbon dioxide (CO₂)
- Water (H₂O)
- Sunlight (energy)
Process:
In the presence of sunlight, chlorophyll in the chloroplasts captures light energy and uses it to convert CO₂ and H₂O into glucose (C₆H₁₂O₆) and oxygen (O₂).
Chemical Equation:
\[
6CO_2 + 6H_2O + \text{energy} \rightarrow C_6H_{12}O_6 + 6O_2
\]
Outputs:
- Glucose (used for energy or stored)
- Oxygen (released into the atmosphere)
---
🔹 Cellular Respiration (Bottom Part of Diagram)
Location: Mitochondrion
Inputs:
- Glucose (C₆H₁₂O₆)
- Oxygen (O₂)
Process:
Cells break down glucose in the presence of oxygen to produce energy in the form of ATP (adenosine triphosphate), along with carbon dioxide and water as waste products.
Chemical Equation:
\[
C_6H_{12}O_6 + 6O_2 \rightarrow 6CO_2 + 6H_2O + \text{energy (ATP)}
\]
Outputs:
- Energy (ATP) – used for cellular activities
- Carbon dioxide (CO₂)
- Water (H₂O)
---
🔁 The Cycle Connection
This diagram shows a closed-loop system:
1. Photosynthesis produces glucose and O₂, which are used in respiration.
2. Respiration produces CO₂ and H₂O, which are used again in photosynthesis.
3. The sunlight provides the initial energy input for photosynthesis.
4. The mitochondrion uses the glucose from photosynthesis to generate usable energy (ATP).
5. The chloroplast uses CO₂ and H₂O (from respiration) to make more glucose.
---
✔ Key Takeaway: Interdependence
- Plants perform both photosynthesis and respiration.
- Photosynthesis stores energy from sunlight in glucose.
- Respiration releases that stored energy for use by the cell.
- These processes are complementary and essential for life.
---
🧠 Summary of the Solution:
> This diagram demonstrates the interconnection between photosynthesis and cellular respiration in plant cells. The products of one process become the reactants of the other:
>
> - Photosynthesis: CO₂ + H₂O → Glucose + O₂ (using sunlight)
> - Respiration: Glucose + O₂ → CO₂ + H₂O + Energy (ATP)
>
> Together, they form a continuous cycle where energy is captured, stored, and released, sustaining life.
---
✔ Final Answer:
The diagram shows that photosynthesis and cellular respiration are complementary processes that recycle matter (CO₂, H₂O, glucose, O₂) and transfer energy in ecosystems. In plants, chloroplasts capture light energy to produce glucose and oxygen, while mitochondria use glucose and oxygen to produce ATP, releasing CO₂ and water — which are reused in photosynthesis. This creates a sustainable energy and material cycle.
Parent Tip: Review the logic above to help your child master the concept of cellular respiration coloring worksheet.
