Use the RAN cycle diagram below to answer the following questions. A. What is nucleotide-bound state of RAN①? [A]B. What is the subcellular location of RAN②? [B]C. In which nucleotide-bound state does RAN have a higher affinity for the nuclear import receptor? [C]

The figure below depicts which of the following mechanisms that cells use to maintain their identity through cell divisions?

Which of the following molecules is the most likely to diffuse across a biological membrane?

Coat proteins mediate vesicular transport within eukaryotic cells. For each transport step indicated in the diagram below, name the coat protein or complex that mediates the indicated step.

When visualized using the electron microscope, the appearance of rough endoplasmic reticulum results from the presence of which protein complexes

What post-translational modification can mark cytosolic proteins for degradation by the proteosome?

Unlike soluble, cytosolic proteins, membrane proteins are more difficult to purify. Which of the following substances is most commonly used to help purify a membrane protein?

Climactic fruits employ which of the following to facilitate ripening?

Write the highest and lowest isobars found on the map above, separate numbers with a comma (,). 

Levels of Cdk activity change during the cell cycle, in part because _______.