Which of the following statement is incorrect w.r.t. endomembranous system?

Options

A. Found only in eukaryotes
B. The organelle of this system function in coordinated manner.
C. It includes endoplasmic reticulm, golgi, complex, lysosome and vacoule
D. Found in that cell in which cyclosis is absent

Answer

To determine which statement is incorrect with respect to the endomembranous system, we will analyze each statement provided.

### Step-by-Step Solution:

1. **Understanding the Endomembranous System**:
- The endomembranous system consists of various organelles that are interconnected and play a crucial role in the synthesis, modification, packaging, and transport of proteins and lipids within the cell. Key organelles include the endoplasmic reticulum (ER), Golgi apparatus, lysosomes, and vesicles.

2. **Evaluating the Statements**:
- **Statement 1**: "Found only in eukaryotes."
- This statement is **correct**. The endomembranous system is a characteristic feature of eukaryotic cells, which have membrane-bound organelles.

- **Statement 2**: "The organelles of this system function in a coordinated manner."
- This statement is also **correct**. The organelles in the endomembranous system must work together to ensure proper cellular function and transport of materials.

- **Statement 3**: "It includes endoplasmic reticulum, Golgi complex, lysosome, and vesicle."
- This statement is **correct**. These organelles are indeed part of the endomembranous system and are involved in various cellular processes.

- **Statement 4**: "Found in that cell in which cyclosis is absent."
- This statement is **incorrect**. Cyclosis refers to the movement of the cytoplasm within a cell, which is crucial for the distribution of materials and organelles. The endomembranous system is present in cells where cyclosis occurs, as it facilitates the movement and transport of substances.

3. **Conclusion**:
- The incorrect statement regarding the endomembranous system is the fourth one: "Found in that cell in which cyclosis is absent."

### Final Answer:
The incorrect statement with respect to the endomembranous system is: "Found in that cell in which cyclosis is absent."