Nucleus controls all life processes because of the presence of

Options

A. nuclear membrane
B. nuclear pores
C. chromosomes
D. lysosomes

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks why the nucleus controls all life processes. This implies that we need to identify a specific component within the nucleus that is responsible for this control.

2. **Analyzing the Options**:
- **Option 1: Nucleus Membrane**: The nucleus membrane surrounds the nucleus and serves as a barrier. It does not control life processes directly. Therefore, this option is incorrect.
- **Option 2: Nucleus Pores**: Nucleus pores allow the transport of molecules in and out of the nucleus. While they play a role in communication, they do not control life processes. Thus, this option is also incorrect.
- **Option 3: Chromosomes**: Chromosomes are structures within the nucleus that contain DNA, which carries genetic information. This genetic information is crucial for regulating all life processes, including growth, reproduction, and metabolism. Therefore, this option is correct.
- **Option 4: Lysosomes**: Lysosomes are organelles that digest waste materials and cellular debris. They are important for cellular maintenance but do not control life processes from the nucleus. Hence, this option is incorrect.

3. **Conclusion**: The nucleus controls all life processes primarily due to the presence of chromosomes, which contain the genetic material necessary for the functioning of the cell.

### Final Answer:
The nucleus controls all life processes because of the presence of **chromosomes**.

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