Final answer:
Exocytosis is the process through which a large molecule such as a protein leaves the cholera cell.
Step-by-step explanation:
The process through which a large molecule such as a protein leaves the cholera cell is exocytosis. Exocytosis is the process by which cells release large molecules or waste materials from their cytoplasm.
In this case, the cholera bacterium releases toxic proteins called toxins near the host cell, and these toxins are then released out of the cell through exocytosis.