Where does the synthesis of enzyme occur in a cell

Options

A. Inside the nucleus
B. In lysosomes
C. On the surface of ribosome
D. Inside the vacuole

Answer

**Step-by-Step Solution:**

1. **Understanding Enzymes**: Enzymes are proteins that act as catalysts in biological reactions. It's important to note that while all enzymes are proteins, not all proteins function as enzymes.

2. **Protein Synthesis**: Proteins, including enzymes, are synthesized in cells through a process that occurs on ribosomes. Ribosomes are the cellular structures responsible for translating messenger RNA (mRNA) into polypeptide chains, which then fold into functional proteins.

3. **Location of Ribosomes**: Ribosomes can be found in two main locations within a cell:
- **Free Ribosomes**: These are located freely in the cytoplasm and synthesize proteins that function within the cytosol.
- **Bound Ribosomes**: These are attached to the endoplasmic reticulum (ER), specifically the rough endoplasmic reticulum (RER), and synthesize proteins that are usually secreted from the cell or incorporated into cellular membranes.

4. **Conclusion**: Since enzymes are synthesized by ribosomes, the correct answer to the question "Where does the synthesis of enzyme occur in a cell?" is "on the surface of ribosomes."

5. **Elimination of Incorrect Options**: The other options provided (inside the nucleus, lysosomes, or vacuoles) do not play a role in enzyme synthesis. The nucleus is involved in the transcription of DNA to mRNA, lysosomes are involved in digestion and waste processing, and vacuoles are primarily for storage.

**Final Answer**: The synthesis of enzymes occurs on the surface of ribosomes.

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