SA2a.  (2 pts) In the graph, do the wild-type yeast cell membranes show an increase or a decrease in fluidity with increasing temperature?  Discuss whether this is the result you would expect to see or whether it’s surprising.

Which of the following crosses phospholipid bilayers most easily?

In receptor-mediated endocytosis, receptor molecules initially project to the outside of the cell. Where do they end up after they enter the cell?

In facilitated diffusion:

A weakness of the “Anterograde vesicular transport between stable compartments” model for Golgi transport is. . .

SA1b. (5 pts)  Microscopy Matching.  Match each type of microscopy with its definition. 

You are analyzing blood from a patient with leukemia. You are interested in counting the cells and sorting them based on the presence or absence of a particular biomarker.  Which technique should you use?

In the context of protein trafficking, what are  zip codes and signal sequences?

Which component, in the figure, represents a peripheral protein?

This drug acts as both a stimulant and a psychedelic.  It produces an energizing effect that distorts both physical nad coginitive sensations and it may impair memory. It works by affecting a neuron’ ability to use the chemical serotonin.  It can sometimes result in too much water in the blood which can cause brain swelling.