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Which type of movement is the least common for lipids in a bilayer?

Select the most appropriate description of the targeting signaling responsible for directing protein transport to each intracellular compartment listed below. Targeting SignalA. ER import signal: [A]B. mitochondria targeting signal: [B]C. nucleus localization signal: [C]

Briefly describe how cholesterol changes the properties of a biological membrane.

Predict what would happen to secreted proteins if signal peptidase was inactivated in a cell. In your answer, be sure to state where you anticipate the protein will be found and why?

Predict what would happen to secreted proteins if signal peptidase was inactivated in a cell. In your answer, be sure to state where you anticipate the protein will be found and why?

Briefly describe how cholesterol changes the properties of a biological membrane.

Briefly describe the underlying defect that occurs in epidermolysis bullosa patients that causes their skin to be more prone to blistering. For full credit, your description must include the name of the mutant protein, its normal function in cells, and how mutations in the protein can result in blistering.

Red blood cells have been very useful in the study of membranes and the protein components that provide structural support. Which of the following proteins is the principal fibrous protein in the cortex of the red blood cell?

Use the RAN cycle diagram below to answer the following questions. A. What is nucleotide-bound state of RAN (1)? [A]B. What is the subcellular location of RAN (2)? [B]C. In which nucleotide-bound state does RAN have a higher affinity for the nuclear import receptor? [C]

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