Example Sentences Among the research topics listed on her university webpage are coronaviruses but also “intracellular protein trafficking” and “exocytosis of large cargo.” From Seattle Times This could happen by building in a rudimentary form of exocytosis, for example, whereby a membrane-bound...
Explain the difference between endocytosis and exocytosis, and provide an example of a molecule that is transferred using this method. How does a cell know when to perform exocytosis? Are exocytosis and endocytosis examples of active or passive transport? Explain your answer. ...
A good example is the attachment of low-density lipoprotein (LDL) to its respective receptor. With time, the bound agent–receptor complex is concentrated in an indentation of the membrane called a coated pit. Clathrin, a cytoplasmic protein that attaches to the internal surface of the plasma ...
Additionally, the formation, migration and fusion of secretory vesicles provide an extensively documented example of derivation of membrane materials from one cell component (the Golgi apparatus) and their addition to yet another cell component (the plasma membrane) to effect a physical transfer, i.e...
Many cellular processes involve exocytosis: for example, in the gastrointestinal tract, the release of neu- rotransmitters in synaptic vesicles from presynaptic en- teric neurons, the secretion of digestive enzymes in zymogen granules from gastric chief cells and pancreatic and parotid acinar cells, ...
A mucus-secreting goblet cell would be an example of a unicellular gland. Is the statement true or false? True or false? In apocrine glands, the secretory cells die when they pinch off at the apex to release secretions. Langerhans cells produce antibodies to foreign material. Tru...
Exocytosis involves the release of material from a cell. This happens when secretory cells release their products, for example in the salivary glands and pancreas. Substances within the cell are enclosed by a membrane to form what is called a vesicle. This moves to fuse with the plasma membrane...
A good example of this is the enzyme Protein disulfide-isomerase which is found in the endoplasmic reticulum. Constitutive exocytosis is an important type of exocytosis that allows cells to constantly transport different types of components to the cell surface to remove them from the cell. For ...
This fact makes it difficult, if not impossible at this moment, to detect and study intermediate stages of regulated exocytosis experimentally, for example stages of vesicle hemifusion, the ensuing establishment of the fusion pore, an aqueous channel connecting the vesicle lumen with the extracellular...
For example, a white blood cell in your immune system can eat a foreign bacterium whole - in one bite! During phagocytosis, the cell membrane folds around the object, engulfing it. The second type of clathrin-based endocytosis is pinocytosis, which comes from the Greek word for 'drink.'...