Exam 8: Cytoplasmic Membrane Systems: Structure, Function, and Membrane Trafficking

What is the primary adaptor protein of the COPII coat that interacts specifically with the ER export signals in the cytosolic tails of membrane proteins that are destined to traffic on to the Golgi complex?

You homogenize a liver cell and isolate from it vesicles derived from the endoplasmic reticulum.When their biochemistry is analyzed,they are found to contain oxygenases.From what type of ER are they derived?

What recently developed technique allows scientists to follow with their own eyes the dynamic movements of specific proteins as they occur within the living cell?

You are observing a cell process in which small vesicles continually merge with the cell membrane.A number of different treatments known to influence the secretion of specific materials seems to have no effect on the process.What type of secretion appears to be occurring?

What enzymes are responsible for determining the sequence of sugars added to growing oligosaccharide chains of membrane proteins or secretory proteins as they travel through the Golgi complex?

The uptake of relatively large particulate matter into the cell is called _________.

Lysosomal enzymes are transported from the TGN in vesicles coated with what protein?

What is the name sometimes given to a single Golgi stack in a plant cell?

The accumulation of misfolded proteins in the ER is a potentially lethal situation and thus causes the triggering of what process?