Two membrane envelope is found in

Options

A. Mitochondria , Golgi apparatus and chloroplast
B. Mitochondria, nucleus and chloroplast
C. Nuclear , Gogli apparatus and endoplasmic
D. Nucleus, ribosome and chloroplast.

Answer

To answer the question "Two membrane envelope is found in," we need to identify which organelles possess a double membrane structure. Here’s a step-by-step breakdown of the solution:

### Step 1: Understand the Concept of Double Membrane
A double membrane structure consists of two lipid bilayers: an outer membrane and an inner membrane. This is a characteristic feature of certain organelles in eukaryotic cells.

### Step 2: Identify Organelles with Double Membranes
The organelles that are known to have a double membrane include:
- **Nucleus**: Contains the genetic material and is surrounded by a nuclear envelope, which has an inner and outer membrane.
- **Mitochondria**: Known as the powerhouse of the cell, it has an inner and outer membrane.
- **Chloroplasts**: Found in plant cells, they are responsible for photosynthesis and also have an inner and outer membrane.

### Step 3: Analyze the Options
Now, let's evaluate the provided options:
1. **Mitochondria, Golgi apparatus, and chloroplast**: The Golgi apparatus has a single membrane, so this option is incorrect.
2. **Mitochondria, nucleus, and chloroplast**: All three organelles have a double membrane. This option is correct.
3. **Nuclear Golgi apparatus and endoplasmic**: The Golgi apparatus and endoplasmic reticulum have single membranes, so this option is incorrect.
4. **Nucleus, ribosome, and chloroplast**: Ribosomes are non-membrane bound, so this option is incorrect.

### Step 4: Conclusion
The correct answer is the second option: **Mitochondria, nucleus, and chloroplast**, as all these organelles possess a double membrane.

### Final Answer
**The correct answer is: Mitochondria, nucleus, and chloroplast.**

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