Question

The process by which a cell secretes macro-molecules by fusing a vesicle to the plasma membrane is

called

(A) endocytosis (B) exocytosis (C) pinocytosis (D) phagocytosis​

Answer 1

Answer:

1. endocytosis : Type of vesicle transport that moves substances into a cell.
2. exocytosis : Type of vesicle transport that moves substances out of a cell.
3. phagocytosis :Process in which leukocytes engulf and break down pathogens and debris.
4. pinocytosis : the ingestion of liquid into a cell by the budding of small vesicles from the cell membrane.

Explanation:

shown above also explained carefully..

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Answer 2

Answer:

(A) ENDOCYTOSIS IS THE ANSWER.

Explanation:

Endocytosis is a process in which cells engulf molecules. Cells use this mechanism, when the molecules are larger and polar hence, cannot pass through hydrophobic cell membrane. The process shows engulfment of small food particles by forming an invagination around it then forming a small vesicle. This vesicle is then taken inside the cell and then vesicle is broken down to release the food particle. Pinocytosis is a process in which fluid is taken inside the cell by enclosing pseudopods around it. Phagocytosis is one of the type of endocytosis. Exocytosis is a process in which the vesicle containing particle is formed inside the cell, which then release the contents outside the cell by fusion of cell membrane and vesicular membrane.

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