Which of the following is not a fate of a protein that is produced by the rough er?
it functions inside of an organelle that is a member of the endomembrane system.
it functions in the cytoskeleton as a tubulin component of microtubules.
is is secreted from the cell similar to how the protein called insulin is secreted from pancreatic cells.
it functions as a glycoprotein in the membranes of the golgi apparatus.

Is is secreted from the cell similar to how the protein called insulin is secreted from pancreatic cells.

Explanation:

the circled areas are referred to   as sunspots.   the sunspots are cooler than the   surrounding area.

sunspots are temporary phenomena on the photosphere of the sun that appear visibly as dark spots compared to surrounding regions. they correspond to concentrations of magnetic field flux that inhibit convection and result in reduced surface temperature compared to the surrounding photosphere.