A double membrane cell organelle absent in fungi

Options

A. 1)Plastids
B. 2)Mitochondria
C. 3)Nucleus
D. 4)1 & 3

Answer

To solve the question "A double membrane cell organelle absent in fungi," we need to analyze the given options step by step.

### Step 1: Understand the question
The question is asking for a double membrane-bound organelle that is not found in fungi. We need to identify which of the provided options fits this description.

### Step 2: Analyze the options
1. **Plastids**: Plastids are double membrane-bound organelles found in plants and some protists. They are responsible for functions such as photosynthesis (in chloroplasts) and storage (in amyloplasts). Importantly, plastids are absent in fungi.

2. **Mitochondria**: Mitochondria are also double membrane-bound organelles, known as the powerhouse of the cell. They are present in all eukaryotic organisms, including fungi.

3. **Nucleus**: The nucleus is a double membrane-bound organelle that contains the cell's genetic material. Fungi, being eukaryotes, have a membrane-bound nucleus.

4. **Option 4 (1 and 3)**: This option suggests that both plastids and the nucleus are absent in fungi. However, we have established that plastids are indeed absent, but the nucleus is present in fungi.

### Step 3: Conclusion
Based on the analysis:
- Plastids are the only double membrane-bound organelles that are absent in fungi.
- Mitochondria and nucleus are present in fungi.

Thus, the correct answer is **Option 1: Plastids**.