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
Organelle X was discovered by

Options

A. Porter
B. Camillo
C. Thompson
D. both (a) and (c)

Explanation

To solve the question, we need to identify the organelle X, its relationship with organelle Y, and who discovered organelle X.

### Step-by-Step Solution:

1. **Identify Organelle X**:
- The question states that organelle X bears ribosomes on its outer surface. This description matches the **rough endoplasmic reticulum (RER)**, which is known for having ribosomes attached to its cytoplasmic side.

**Hint**: Look for organelles that have ribosomes on their surface; this is a key feature of the rough endoplasmic reticulum.

2. **Identify Organelle Y**:
- The question mentions that organelle X and organelle Y together give rise to organelle Z. In this context, organelle Y is the **Golgi apparatus**. The Golgi apparatus processes and packages proteins synthesized in the rough endoplasmic reticulum.

**Hint**: Consider organelles that work together in protein synthesis and processing; the Golgi apparatus is a major player in this process.

3. **Identify Organelle Z**:
- Organelle Z is referred to as the 'suicide bag' of the cell. This term is commonly used to describe **lysosomes**, which contain digestive enzymes that can break down waste materials and cellular debris.

**Hint**: Think about organelles that are involved in digestion and waste removal; lysosomes fit this description.

4. **Discoverer of Organelle X**:
- The question asks who discovered organelle X (the rough endoplasmic reticulum). The rough endoplasmic reticulum was discovered by **George Emil Palade**, who is often credited with this discovery.

**Hint**: Research the contributions of scientists to cell biology; George Emil Palade is a key figure in the discovery of the rough endoplasmic reticulum.

5. **Conclusion**:
- The correct answer to the question is that organelle X (the rough endoplasmic reticulum) was discovered by **George Emil Palade**.

### Final Answer:
Organelle X (rough endoplasmic reticulum) was discovered by **George Emil Palade**.