The uptake of material through the cell membrane by the formation of a vesicle is __________, whereas the fusion of a vesicle with the cell membrane and the release of its contents outside of the cell is called __________.Multiple Choiceexocytosis; pinocytosispinocytosis; endocytosisendocytosis; pinocytosisendocytosis; exocytosis
Question
The uptake of material through the cell membrane by the formation of a vesicle is __________, whereas the fusion of a vesicle with the cell membrane and the release of its contents outside of the cell is called __________.Multiple Choiceexocytosis; pinocytosispinocytosis; endocytosisendocytosis; pinocytosisendocytosis; exocytosis
Solution
The correct answer is "endocytosis; exocytosis".
Endocytosis is a process by which cells absorb molecules (such as proteins) from outside the cell by engulfing it with their cell membrane. It is used by all cells of the body because most substances important to them are large polar molecules that cannot pass through the hydrophobic plasma or cell membrane.
On the other hand, exocytosis is the process by which a cell transports secretory products through the cytoplasm to the plasma membrane. Secretory products are packaged into transport vesicles
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