How is Ran different than Rab and Sar1?

A coat protein that associates with and bends lipid rafts into vesicles is:

Which type of phospholipid movement is exceedingly RARE in a bilayer?

How does a nuclear export signal (NES) work?

The cisternal maturation model refers to:

What effect does a guanine nucleotide exchange factor (GEF) have on GTPases? 

What fluorescence pattern would you expect to see in transgenic cells that express a green fluorescent protein (GFP) tagged with a nuclear localization signal (NLS)?  

Correctly order the steps that must be taken in order for a protein to be translated in conjunction with the endoplasmic reticulum (ER): SRP = signal recognition particle 1. The ribosome dissociates from the ER membrane 2. Translation of the polypeptide through the ER pore protein (part of the translocon) into the ER lumen occurs 3. SRP binds to an SRP receptor located on the rough ER membrane 4. SRP recognizes and binds to the ER signal sequence of the newly forming polypeptide 5. An enzyme called a signal peptidase removes the ER signal sequence from the polypeptide  6. Translation of the newly forming polypeptide pauses

What is the function of heat shock protein 70 (Hsp70)? 

Your colleague wants to examine receptor-mediated endocytosis in a mutant cell line. Specifically, they want to obtain an image that is a “slice” through a cell, showing both the inside and the outside of the cell at the same time. What type of imaging technique should they use?