Membranous bag with hydrolytic enzymes which is used for controlling intracellular digestion of macromolecules is

Options

A. endoplasmic reticulum
B. nucleosome
C. lysosome
D. phagosome

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the name of a structure that is a "membranous bag" containing "hydrolytic enzymes" and is responsible for "controlling intracellular digestion of macromolecules."

2. **Analyzing the Options**:
- **Option 1: Endoplasmic Reticulum (ER)**: The endoplasmic reticulum is involved in protein synthesis and lipid synthesis. It is not primarily responsible for intracellular digestion.
- **Option 2: Nucleosome**: Nucleosomes are structural units of DNA packaging and do not relate to digestion or hydrolytic enzymes.
- **Option 3: Lysosome**: Lysosomes are indeed membranous organelles that contain hydrolytic enzymes. They play a crucial role in the intracellular digestion of macromolecules by breaking them down into simpler molecules.
- **Option 4: Phagosome**: Phagosomes are vesicles formed during phagocytosis, which is the process of engulfing and degrading dead cells. However, they do not contain hydrolytic enzymes like lysosomes do.

3. **Identifying the Correct Answer**: Based on the analysis, lysosomes are the only organelles that fit the description of being membranous bags with hydrolytic enzymes responsible for intracellular digestion. Therefore, the correct answer is **Option 3: Lysosome**.

4. **Final Answer**: The membranous bag with hydrolytic enzymes used for controlling intracellular digestion of macromolecules is known as **Lysosome**.

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