MCAT Biochemistry Question 115: Answer and Explanation
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Question: 115
10. The bulk movement of liquid into a cell through vesicular infoldings is known as:
- A. phagocytosis.
- B. pinocytosis.
- C. exocytosis.
- D. drinking.
Correct Answer: B
Explanation:
The endocytosis (bulk uptake through vesicle formation) of fluid is known as pinocytosis. Phagocytosis, choice (A), is the endocytotic intake of solids, while exocytosis, choice (C), is a method of releasing vesicular contents. Drinking, choice (D), does not apply on a cellular level.