EsRNAs ["E-S-R-N-A"s] are carried by an extracellular type of these structures. The role of genes like sec1 in transport of these structures was discovered by Randy Schekman, who with Südhof and Rothman won a 2013 Nobel for work on them. Exosomes are a type of these structures, whose docking is mediated by (*) SNAREs. COPI and COPII are coat proteins on them. During endocytosis, they originate via budding from the plasma 
EsRNAs ["E-S-R-N-A"s] are carried by an extracellular type of these structures. The role of genes like sec1 in transport of these structures was discovered by Randy Schekman, who with Südhof and Rothman won a 2013 Nobel for work on them. Exosomes are a type of these structures, whose docking is mediated by (*) SNAREs. COPI and COPII are coat proteins on them. During endocytosis, they originate via budding from the plasma membrane. The Golgi apparatus packages proteins in these structures. For 10 points, name these small membranebound structures that transport materials in the cell.
EsRNAs ["E-S-R-N-A"s] are carried by an extracellular type of these structures.