The process by which fusion of pa of a cell membrane occurs is/are: (A) Cell division, (B) Endocytosis, (C) Exocytosis, (D) Virus replication
Answer is B. In Endocytosis the cell membrane fuses around the receptor. Example is cells take up cholesterol contained in low-density lipoprotein. (REF: GANONG&;S REVIEW OF MEDICAL PHYSIOLOGY)