Pinocytosis was studied for the first time by

Options

A. Metchnikoff
B. Lewis
C. Plowe
D. Nageli

Answer

**Step-by-Step Solution:**

1. **Understanding the Term Pinocytosis**:
- Pinocytosis is a type of endocytosis, specifically referred to as "cell drinking," where cells engulf extracellular fluid and solutes by forming small vesicles.

2. **Identifying the Options**:
- The options provided are:
- A. A. Machnikov
- B. Lewis
- C. Plovey
- D. Nageli

3. **Researching Historical Context**:
- To answer the question, we need to identify which scientist first studied pinocytosis.

4. **Finding the Correct Scientist**:
- According to historical records, Warren Leavitt is credited with the first study of pinocytosis in 1929.

5. **Conclusion**:
- Since Warren Leavitt is not listed among the options, it appears there may be a misunderstanding in the question. However, based on the context provided, none of the listed scientists are correct.

6. **Final Answer**:
- The correct answer is not provided in the options. The first study of pinocytosis was conducted by Warren Leavitt in 1929.

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