Studies of the Endomembrane System Often Involve the Use of a Protein

question 60

Multiple Choice

Studies of the endomembrane system often involve the use of a protein that can emit a green fluorescence (glow) . A researcher wants to make a video of cell behavior, so she initially labels the outer nuclear envelope of a cell with the fluorescent tag and records a video for several hours. Later, she sees that the tag is part of a transport vesicle very close to the plasma membrane.
-What likely happened during the intervening time?

• A) The outer membrane of the nucleus broke off and moved the fluorescent tag to the Golgi.
• B) The endoplasmic reticulum engulfed the tagged protein and released it in a transport vacuole.
• C) Material from the nucleus, including the tag, was being secreted outside the cell.
• D) The tag was seen in the Golgi before being seen in a transport vacuole.

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Definitions:

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Metabolic Disorder

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