Large cells have

Options

A. High metabolic rate
B. High respiration rate
C. Low surface : volume ratio
D. High surface : volume ratio

Answer

To solve the question "Large cells have," we need to analyze the options provided and understand the relationship between cell size, surface area, and volume.

### Step-by-Step Solution:

1. **Understanding Cell Size**:
- Cells come in various sizes, and as a cell increases in size, its volume increases more significantly than its surface area.

2. **Surface Area vs. Volume**:
- The surface area of a cell is crucial for the exchange of materials (like nutrients and waste) with its environment.
- Volume, on the other hand, relates to the metabolic activities occurring within the cell.

3. **Metabolic Rate**:
- Larger cells tend to have a higher metabolic rate due to the greater volume, which means more cellular processes are taking place.

4. **Surface to Volume Ratio**:
- The surface area to volume ratio (SA:V) is a key concept. As cells grow larger, their volume increases faster than their surface area, leading to a decrease in the SA:V ratio.
- A lower SA:V ratio means that there is less surface area available for the exchange of materials relative to the volume of the cell.

5. **Evaluating the Options**:
- **Option A**: High metabolic rate - This is true for large cells, but it does not directly answer the question.
- **Option B**: High respiration rate - Similar to option A, this is not the best fit for the question.
- **Option C**: Low surface to volume ratio - This is correct because larger cells have a decreased SA:V ratio.
- **Option D**: High surface to volume ratio - This is incorrect as larger cells have a lower SA:V ratio.

6. **Conclusion**:
- Based on the analysis, the correct answer to the question "Large cells have" is **Option C: low surface to volume ratio**.

### Final Answer:
**C: Low surface to volume ratio**

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