Lysosomes were first seen and named by

Options

A. De Duve
B. Palade
C. Novikoff
D. Robertson

Answer

**Step-by-Step Solution:**

1. **Understanding Lysosomes**: Begin by defining what lysosomes are. They are membrane-bound organelles found in cells that contain digestive enzymes. These enzymes help in breaking down excess or worn-out organelles, food particles, and microorganisms.

2. **Identifying the Options**: The question provides four options regarding who first saw and named lysosomes:
- Option 1: D-Due
- Option 2: Palade
- Option 3: Novikov
- Option 4: Robertson

3. **Analyzing Each Option**:
- **D-Due**: This name does not relate to the discovery of lysosomes.
- **Palade**: He is known for discovering ribosomes, not lysosomes.
- **Novikov**: He is credited with observing lysosomes under the microscope in 1956.
- **Robertson**: He proposed the unit membrane model of the plasma membrane, which is unrelated to lysosomes.

4. **Conclusion**: Based on the analysis, the correct answer is Novikov, as he was the one who first observed and named lysosomes.

**Final Answer**: Lysosomes were first seen and named by Novikov.

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