Which of the following organelles is present exclusively in plants?

Options

A. Ribosome
B. Lysosome
C. Peroxisome
D. Glyoxysome

Answer

To determine which organelle is present exclusively in plants, let's analyze the options provided:

1. **Ribosomes**:
- Ribosomes are cellular structures that synthesize proteins. They are found in both prokaryotic and eukaryotic cells, including plants and animals. Therefore, this option is incorrect.

2. **Lysosomes**:
- Lysosomes are known as "suicidal bags" of the cell because they contain digestive enzymes that break down waste materials and cellular debris. They are present in both plant and animal cells. Thus, this option is also incorrect.

3. **Peroxisomes**:
- Peroxisomes are organelles that contain enzymes for oxidation reactions, including the breakdown of fatty acids and amino acids. They are found in both plant and animal cells. Therefore, this option is incorrect as well.

4. **Glyoxysomes**:
- Glyoxysomes are specialized types of peroxisomes found exclusively in plants. Their primary function is to convert stored fatty acids into carbohydrates during seed germination. This organelle is unique to plants.

Based on the analysis of the options, the correct answer is **Glyoxysomes**, as they are the only organelles listed that are present exclusively in plants.

### Summary:
The organelle that is present exclusively in plants is **Glyoxysomes**.