Organelle X bears ribosomes on its outer surface. Organelle X and organelle Y together give rise to organelle Z which is often referred to as 'suicide bag' of cells. Identify organelles X, Y and Z and select the incorrect option regarding them.

Options

A. Organelle X takes part in formation of proteins
B. Organelle Z is bound by single membrane.
C. Organelle Y is the main site of cellular respiration.
D. Organelle Z is involved in autophagy.

Explanation

To solve the question, we need to identify organelles X, Y, and Z based on the provided information and then determine which statement about them is incorrect.

### Step-by-Step Solution:

1. **Identify Organelle X**:
- The question states that organelle X has ribosomes on its outer surface. This characteristic is typical of the **Rough Endoplasmic Reticulum (RER)**, which is involved in protein synthesis.

2. **Identify Organelle Y**:
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