Exocytosis Endocytosis Exocytosis is used to ojoct substances trom the cell. Here, a cell ejects waste matertal into the outskde environment. Endocytosis is the revorse of exocyfosis, bringing matorial trom the outside of the coll to the inside, enclosod in vesickes. Endocytosis may be nonselectivo, as shown here, drawing in any and al molocukos noar the opening of the vosicle. Here, a white blood cll engults a yeast coll through phagocytosis, a form of nonspecitic endocytosis. Receptor-mediated endocytosis Cells lining blood vessels have created flud-iled vesicles through pinocytosis, nonspecific endocytosis of ukd. Receptor-mediatod endocylosis is a selective process in which only certain molecules bind to receptor proteins. Here, low-density lipoprotein (LDL) particles bind lo LDL receptors and are transported to the cell interior.

Biology 2e
2nd Edition
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark
Chapter5: Structure And Function Of Plasma Membranes
Section: Chapter Questions
Problem 15RQ: What happens to the membrane of a vesicle after exocytosis? It leaves the cell It is disassembled by...
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Q1: If endocytosis itself is nonspecific, how does receptor-mediated endocytosis bring only certain molecules into a cell? Q2: What sorts of molecules could be moved by endocytosis or exocytosis, but not by diffusion? Q3: How does the fluid that enters a cell via pinocytosis differ from the fluid that enters by osmosis?

Exocytosis
Endocytosis
Exocytosis is used to ojoct
substances trom the cell.
Here, a cell ejects waste
matertal into the outskde
environment.
Endocytosis is the revorse of
exocyfosis, bringing matorial
trom the outside of the coll to
the inside, enclosod in
vesickes. Endocytosis may be
nonselectivo, as shown here,
drawing in any and al
molocukos noar the opening of
the vosicle.
Here, a white blood cll
engults a yeast coll
through phagocytosis,
a form of nonspecitic
endocytosis.
Receptor-mediated endocytosis
Cells lining blood vessels
have created flud-iled
vesicles through pinocytosis,
nonspecific endocytosis of
ukd.
Receptor-mediatod
endocylosis is a
selective process in
which only certain
molecules bind to
receptor proteins.
Here, low-density
lipoprotein (LDL)
particles bind lo
LDL receptors and
are transported to
the cell interior.
Transcribed Image Text:Exocytosis Endocytosis Exocytosis is used to ojoct substances trom the cell. Here, a cell ejects waste matertal into the outskde environment. Endocytosis is the revorse of exocyfosis, bringing matorial trom the outside of the coll to the inside, enclosod in vesickes. Endocytosis may be nonselectivo, as shown here, drawing in any and al molocukos noar the opening of the vosicle. Here, a white blood cll engults a yeast coll through phagocytosis, a form of nonspecitic endocytosis. Receptor-mediated endocytosis Cells lining blood vessels have created flud-iled vesicles through pinocytosis, nonspecific endocytosis of ukd. Receptor-mediatod endocylosis is a selective process in which only certain molecules bind to receptor proteins. Here, low-density lipoprotein (LDL) particles bind lo LDL receptors and are transported to the cell interior.
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