AP BIOLOGY

LABORATORY REVIEW

DIFFUSION AND OSMOSIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Endocytosis and exocytosis both use energy to engulf substances with the cell membrane. However, ____ brings substances into the cell, while ____ takes substances out of the cell.
A
endocytosis, exocytosis
B
exocytosis, endocytosis
C
endocytosis, endocytosis
D
exocytosis, exocytosis
Explanation: 

Detailed explanation-1: -Endocytosis is the process of capturing a substance or particle from outside the cell by engulfing it with the cell membrane, and bringing it into the cell. Exocytosis describes the process of vesicles fusing with the plasma membrane and releasing their contents to the outside of the cell.

Detailed explanation-2: -Both endocytosis and exocytosis need energy in the form of adenosine triphosphate or ATP, used in the movement of the substances in and out of the cell. There are three types of endocytosis-phagocytosis, pinocytosis and receptor-mediated endocytosis.

Detailed explanation-3: -Endocytosis and exocytosis are the mechanisms by which cells transport items that are too big to pass through the lipid bilayer of the cell membrane directly into or out of the cell. Exocytosis and endocytosis are two processes that allow large molecules, bacteria, and waste materials to pass through the cell membrane.

Detailed explanation-4: -Phagocytosis (literally, “cell eating”) is a form of endocytosis in which large particles, such as cells or cellular debris, are transported into the cell. We’ve already seen one example of phagocytosis, because this is the type of endocytosis used by the macrophage in the article opener to engulf a pathogen.

Detailed explanation-5: -The correct answer is that a-Endocytosis and exocytosis involve active transport. Both endocytosis and exocytosis require the use of ATP for the cell to enclose the particles being brought in, or to move the vesicle out of the cell, this makes both of these processes active transport.

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