Find the odd one out from the following:

Options

A. Amyloplast
B. Apoplast
C. Aleuroplast
D. Elaioplast

Answer

To solve the question of finding the odd one out from the given options: amyloplast, alluroplast, ellioplast, and apoplast, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Types of Plastids**:
- Amyloplast, alluroplast, and ellioplast are all types of plastids found in plants.
- They are specifically known as leucoplasts, which are colorless plastids that do not contain chlorophyll.

2. **Functions of Plastids**:
- Amyloplasts store starch.
- Alluroplast stores proteins.
- Ellioplast stores lipids.
- All three are involved in storage functions within plant cells.

3. **Identify the Odd One Out**:
- Apoplast is not a plastid. Instead, it refers to the space outside the plasma membrane of plant cells where materials can pass freely.
- Unlike amyloplast, alluroplast, and ellioplast, which are involved in storage and are part of the plant cell's internal structures, apoplast is related to the extracellular space.

4. **Conclusion**:
- Since amyloplast, alluroplast, and ellioplast are all types of colorless plastids involved in storage within plant cells, while apoplast is a different entity related to the extracellular space, the odd one out is **apoplast**.

### Final Answer:
**Apoplast** is the odd one out.

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