which of the following organelles contain enzymes that have digestive action ?

Options

A. Ribosomes
B. Polysomes
C. Plastids
D. Lysosomes

Answer

To solve the question "Which of the following organelles contain enzymes that have digestive action?", we will analyze each option provided and identify the correct one.

### Step-by-Step Solution:

1. **Identify the Options**: The question presents several organelles as options. We need to evaluate each one to determine if they contain digestive enzymes.

2. **Evaluate Ribosomes**:
- Ribosomes are known as the protein factories of the cell.
- Their primary function is to synthesize proteins, not to digest them.
- **Conclusion**: Ribosomes do not contain digestive enzymes.

3. **Evaluate Polysomes**:
- Polysomes are clusters of ribosomes that work together to translate mRNA into proteins.
- They also do not play a role in digestion and do not contain digestive enzymes.
- **Conclusion**: Polysomes do not contain digestive enzymes.

4. **Evaluate Plastids**:
- Plastids, such as chloroplasts, are involved in photosynthesis and storage of products like starch.
- They do not have a function related to digestion.
- **Conclusion**: Plastids do not contain digestive enzymes.

5. **Evaluate Lysosomes**:
- Lysosomes are membrane-bound organelles that contain hydrolytic enzymes.
- These enzymes are responsible for breaking down various biomolecules, including lipids, proteins, and nucleic acids.
- The enzymes found in lysosomes include:
- **Lipase**: Breaks down lipids.
- **Proteases**: Breaks down proteins into peptides.
- **Nucleases**: Breaks down nucleic acids.
- Lysosomes function effectively in an acidic environment, which is optimal for their digestive enzymes.
- **Conclusion**: Lysosomes contain enzymes that have digestive action.

6. **Final Answer**: Based on the analysis, the correct answer is **Option D: Lysosome**.