20 Questions
What is the process of internalising various liquids and small particles known as?
Pinocytosis
Which process involves the formation of large vesicles called phagosomes?
Phagocytosis
What type of cells ingest large particles by phagocytosis?
Only specialised phagocytic cells
What is the process that is the reverse of endocytosis?
Exocytosis
Which process involves molecules being packaged into membrane-bound vesicles?
Exocytosis
What do endosomes refer to in the context of cellular processes?
Intracellular vesicles formed during pinocytosis
Which process involves membrane protrusions surrounding large particles?
Phagocytosis
'Cell drinking' is another term used to describe which cellular process?
Pinocytosis
'Cell eating' is a term associated with which cellular process?
Phagocytosis
Which type of cells ingest large particles by forming large vesicles called phagosomes?
All specialised phagocytic cells
What is the main characteristic of clathrin-mediated endocytosis?
Involves the formation of a complex of proteins
What is the function of adaptor proteins in clathrin-mediated endocytosis?
Bind the clathrin coat to cargo receptor cytoplasmic sites
What is the role of Dynamin in clathrin-mediated endocytosis?
Causes vesicle release by forming a ring around the neck
What is the fate of clathrin triskelions and adaptors after vesicle release?
They are recycled back to the membrane
Which protein forms the curvature of coated pits during clathrin-mediated endocytosis?
Clathrin triskelions
What initiates the formation of coated vesicles in clathrin-mediated endocytosis?
Activation of PIP2 via DAG
How do adaptor proteins interact with cargo receptors in clathrin-mediated endocytosis?
Recognize amino acid sequences on membrane receptors
What is the structural arrangement of a molecule of clathrin referred to as?
Triskelion
What is the function of Dynamin in clathrin-mediated endocytosis?
Causes vesicle release by pinching off the neck
What triggers the deepening of coated pits during clathrin-mediated endocytosis?
Extracellular fluid encapsulation by membranes
Learn about the processes of endocytosis and exocytosis in cells. Understand how cells internalize substances through pinocytosis and phagocytosis. Explore the formation of endosomes and phagosomes.
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