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Question

The secretion of macromolecules by fusing a transport vesicle to the plasma membrane is

A
Pinocytosis
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B
Phagocytosis
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C
Endocytosis
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D
Exocytosis
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Solution

The correct option is D Exocytosis
Bulk transport is a transport of large quantities of micro and macromolecules and food particles through the membrane. It is accompanied by the formation of transport or carrier vesicles. Exocytic vesicles are involved in the bulk transportation outwardly, it is called as exocytosis. It performs secretion, excretion and ephagy. During exocytosis, the vacuoles come in contact and fuse with plasma membrane for throwing out their contents.

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