INTRODUCTION
CELL STRUCTURE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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exocytosis
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endocytosis
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protein pumping
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facilitated diffusion
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Detailed explanation-1: -In endocytosis the cell plasma membrane extends and folds around desired extracellular material, forming a pouch that pinches off creating an internalized vesicle (Fig. 19.22, [19–47]). The invaginated pinocytosis vesicles are much smaller than those generated by phagocytosis.
Detailed explanation-2: -ENDOCYTOSIS AND EXOCYTOSIS: MOVEMENT OF LARGE PARTICLES It is possible for large molecules to enter a cell by a process called endocytosis, where a small piece of the cell membrane wraps around the particle and is brought into the cell. If the particle is solid, endocytosis is also called phagocytosis.
Detailed explanation-3: -Endocytosis takes particles into the cell that are too large to passively cross the cell membrane. Phagocytosis is the taking in of large food particles, while pinocytosis takes in liquid particles. Receptor-mediated endocytosis uses special receptor proteins to help carry large particles across the cell membrane.