What happens to the membrane of a vesicle after exocytosis?
- It leaves the cell.
- It is disassembled by the cell.
- It fuses with and becomes part of the plasma membrane.
- It is used again in another exocytosis event.
Which transport mechanism can bring whole cells into a cell?
- facilitated transport
- primary active transport
In what important way does receptor-mediated endocytosis differ from phagocytosis?
- It transports only small amounts of fluid.
- It does not involve the pinching off of membrane.
- It brings in only a specifically targeted substance.
- It brings substances into the cell, while phagocytosis removes substances.
Many viruses enter host cells through receptor-mediated endocytosis. What is an advantage of this entry strategy?
- The virus directly enters the cytoplasm of the cell.
- The virus is protected from recognition by white blood cells.
- The virus only enters its target host cell type.
- The virus can directly inject its genome into the cell’s nucleus.
Which of the following organelles relies on exocytosis to complete its function?
- Golgi apparatus
- endoplasmic reticulum
Imagine a cell can perform exocytosis, but only minimal endocytosis. What would happen to the cell?
- The cell would secrete all its intracellular proteins.
- The plasma membrane would increase in size over time.
- The cell would stop expressing integral receptor proteins in its plasma membrane.
- The cell would lyse.