Which of the following is not a mechanical cell organelle:-

Options

A. Glyoxysomes
B. Centriole
C. Diplosome
D. Blepheroplast

Answer

To determine which of the following options is not a mechanical cell organelle, we can analyze each option provided:

1. **Glyoxysomes**:
- Glyoxysomes are specialized peroxisomes found primarily in plants. They contain enzymes that facilitate the breakdown of fatty acids through beta-oxidation. They are involved in metabolic processes but do not play a direct mechanical role in cell structure or movement. Therefore, they are not classified as mechanical cell organelles.

2. **Centrioles**:
- Centrioles are cylindrical structures that play a crucial role in cell division. They help in organizing microtubules and are essential for the formation of the spindle fibers that separate chromosomes during mitosis. Thus, centrioles are considered mechanical cell organelles.

3. **Diplosome**:
- A diplosome consists of a pair of centrioles arranged perpendicularly. Like centrioles, diplosomes are involved in cell division and the organization of microtubules. Hence, they are also classified as mechanical cell organelles.

4. **Blepharoplast**:
- Blepharoplast, often referred to as a basal body, is a structure found at the base of cilia and flagella. It is essential for the growth of microtubules and plays a role in the mechanical aspects of cell movement. Therefore, it is also considered a mechanical cell organelle.

After analyzing all the options, the correct answer to the question "Which of the following is not a mechanical cell organelle?" is **Glyoxysomes**.

### Step-by-Step Solution:
1. Identify the options provided.
2. Analyze each option to determine its function and classification as a mechanical cell organelle.
3. Conclude that Glyoxysomes are not mechanical cell organelles, while Centrioles, Diplosomes, and Blepharoplasts are.