Consider the following statements and select the correct option
(A) The endomembrane system includes plasma membrane, ER, Golgi complex, lysosomes and vacuoles
(B) ER helps in the transparent of substances, synthesis of proteins, lipoproteins and glycogen
(C) Ribosomes are involved in protein synthesis
(D) Mitochondria help in oxidative phosphorylation and generation of ATP

Options

A. B, C and D are correct
B. A along is correct
C. B alone is correct
D. C alone is correct

Answer

To solve the question, we need to evaluate each statement one by one and determine whether they are correct or incorrect.

### Step-by-Step Solution:

1. **Evaluate Statement A**:
- The statement claims that the endomembrane system includes the plasma membrane, endoplasmic reticulum (ER), Golgi complex, lysosomes, and vacuoles.
- **Analysis**: The endomembrane system does include the ER, Golgi complex, lysosomes, and vacuoles, but it does not include the plasma membrane.
- **Conclusion**: Statement A is incorrect.

2. **Evaluate Statement B**:
- The statement claims that the ER helps in the transport of substances, synthesis of proteins, lipoproteins, and glycogen.
- **Analysis**: The rough ER is involved in protein synthesis due to the presence of ribosomes, while the smooth ER is involved in lipid synthesis and can also assist in glycogen synthesis.
- **Conclusion**: Statement B is correct.

3. **Evaluate Statement C**:
- The statement claims that ribosomes are involved in protein synthesis.
- **Analysis**: Ribosomes are indeed the sites of protein synthesis in the cell.
- **Conclusion**: Statement C is correct.

4. **Evaluate Statement D**:
- The statement claims that mitochondria help in oxidative phosphorylation and generation of ATP.
- **Analysis**: Mitochondria are known as the powerhouse of the cell, where oxidative phosphorylation occurs, leading to ATP production.
- **Conclusion**: Statement D is correct.

### Final Conclusion:
- The correct statements are B, C, and D. Therefore, the correct option is B, C, D are correct.