The diameter of the cisternae ranges from

Options

A. 0.5-1.0 mu m`
B. 1.0 -1.5 mu m`
C. `1.5 - 2.0 mu m`
D. `0.5 - 1.5 mu m`

Answer

To answer the question regarding the diameter of the cisternae, we can follow these steps:

### Step-by-Step Solution:

1. **Understand what cisternae are**:
- Cisternae are flattened, sac-like structures that are integral components of the Golgi apparatus. They play a crucial role in the processing and packaging of proteins.

2. **Identify the function of cisternae**:
- The primary functions of cisternae include the modification, packaging, and transportation of proteins synthesized by the endoplasmic reticulum.

3. **Determine the size of cisternae**:
- Cisternae are membrane-bound structures, and their diameter is a key characteristic.

4. **Refer to the diameter range**:
- Based on biological literature, the diameter of cisternae typically ranges from 0.5 to 1 micrometer.

5. **Evaluate the options given**:
- The options provided are:
- A) 0.5 to 1 micrometer
- B) 1 to 1.5 micrometer
- C) 1.5 to 2 micrometer
- D) 0.5 to 1.5 micrometer
- From our understanding, the correct range is 0.5 to 1 micrometer.

6. **Select the correct answer**:
- Therefore, the correct answer is option A: 0.5 to 1 micrometer.

### Final Answer:
The diameter of the cisternae ranges from **0.5 to 1 micrometer**.