Question 14 Although constitutive secretion is a constant process in nearly all animal cells, regulated secretion occurs only in specialized secretory cells in response to stimuli. How does a stimuli trigger secretion? It causes secretory vesicles to fuse with the plasma membrane O It causes proteins to aggregate in the Golgi. It blocks constitutive secretion. 2 pts O It causes secretory vesicles to fuse with the lysosome.
Why are proteins without a nuclear import signal unable to enter the nucleus? O They will not be correctly sorted when leaving the Golgi apparatus. They won't be recognized by the translocators which feed proteins through the nuclear membrane. O The nuclear pore widens only in response to the correct signal sequences. They are unable to pass through the disordered proteins lining the nuclear pore. Question 17 Mark each statement as True or False The endoplasmic reticulum contains more membrane than the plasma membrane does. Lysosomes contain hydrolytic enzymes that function best at high pH. [Choose ] [Choose] 3 pts
Which of the following is NOT a potential outcome of the unfolded protein response? If the problem is not resolved, the cell may eventually be induced to undergo apoptosis. The cell makes more ER proteins (like chaperones) to increase ER capacity. Protein synthesis and the cell cycle is slowed Unfolded proteins are secreted from the cell by exocytosis Which of the following is NOT a potential outcome of the unfolded protein response? If the problem is not resolved, the
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