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Endocytosis: Quiz


Question 1: pH 4.8) and by EM usually appear as large ________ (1-2 ┬Ám in diameter) containing electron dense material.
Endomembrane systemCell (biology)VacuoleCell wall

Question 2: Coated pits can concentrate a large extracellular molecules that have different ________ responsible for the receptor-mediated endocytosis of ligands, e.g.
Hormone receptorMembrane receptorReceptor (biochemistry)Transcription factor

Question 3: Once the coat has been shed, the remaining vesicle fuses with ________ and proceeds down the endocytic pathway.
Cell (biology)Vesicle (biology)EndosomeCell membrane

Question 4: Endocytosis is the process by which cells absorb molecules (such as proteins) from outside the cell by engulfing it with their ________.
Cell wallVesicle (biology)Cell nucleusCell membrane

Question 5: G Anderson, Michael S. Brown and ________ in 1976.
Stanley Cohen (biochemist)Joseph L. GoldsteinEdward B. LewisMichael Stuart Brown

Question 6: Late ________ receive internalized material en route to lysosomes, usually from early endosomes in the endocytic pathway, from trans-Golgi network (TGN) in the biosynthetic pathway, and from phagosomes in the phagocytic pathway.
Cell membraneCell (biology)Vesicle (biology)Endosome

Question 7: They are principally sorting ________ where many ligands dissociate from their receptors in the acid pH of the lumen and from which many of the receptors recycle to the cell surface (via tubules).
Cell (biology)MitochondrionCell nucleusOrganelle

Question 8: The vesicle then travels into the ________ and fuses with other vesicles such as endosomes and lysosomes.
MetabolismCytosolMitochondrionCell (biology)

Question 9: This large protein assists in the formation of a coated pit on the inner surface of the ________ of the cell.
Cell nucleusVesicle (biology)Cell membraneCell (biology)

Question 10: The membrane invaginates enclosing the wanted particles in a pocket, then engulfs the object by pinching it off, and the object is sealed off into a large ________ known as a phagosome.
Endomembrane systemCell wallCell (biology)Vacuole

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