Plant cells can perform certain functions which animal cells cannot perform. The function unique to a plant cell is the

Options

A. exchange of gases
B. absorption of water
C. production of starch
D. transport of nutrients

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for a function that is unique to plant cells and not performed by animal cells.

2. **Analyzing the Options**: We need to evaluate each option provided to determine which one is unique to plant cells.

3. **Option 1 - Exchange of Gases**:
- Both plant and animal cells can exchange gases. Plants take in carbon dioxide and release oxygen during photosynthesis, while animals take in oxygen and release carbon dioxide during respiration.
- **Conclusion**: This option is incorrect.

4. **Option 2 - Absorption of Water**:
- While plant cells absorb water for growth, animal cells can also absorb water through their cell membranes.
- **Conclusion**: This option is incorrect.

5. **Option 3 - Production of Starch**:
- Plant cells have chloroplasts, where photosynthesis occurs, leading to the production of glucose. This glucose can be converted into starch, which is stored in plant cells.
- Animal cells do not have the ability to produce starch; they can only store glycogen as a form of energy.
- **Conclusion**: This option is correct.

6. **Option 4 - Transport of Nutrients**:
- Both plant and animal cells transport nutrients. Plants transport nutrients through their vascular system (xylem and phloem), while animals transport nutrients through their circulatory system.
- **Conclusion**: This option is incorrect.

7. **Final Answer**: The function unique to a plant cell is the **production of starch**.

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