What is the term for the process by which single-celled organisms engulf large molecules from their surroundings into the cytoplasm without prior digestion?

Explanation

Option A refers to the passive movement of molecules from high to low concentration. Option B describes the movement of water across a membrane. Option C, phagocytosis, is the correct process where cells ingest large particles without digesting them first. Option D describes plasmolysis, which is the loss of water causing cell contraction.