Question

1. An animal has acquired a mution on its COP-2 Protein, causing the cell to lose...

1. An animal has acquired a mution on its COP-2 Protein, causing the cell to lose all its functions. which of the following would be affected?
- budding vesicles of the ER
- endocytosis
- budding vesicles from the Golgi
- vesicle formation from the plasma membrane

*not sure if it would be budding vesicles from ER or Golgi


2. protein import to both perioxisome and nucleus requires:
- free-floating receptor
- protein translocator
-signal sequence
-unfolding of protein
- 2 choices are correct
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Homework Answers

Answer #1

1. COP II is a coatomer, a type of vesicle coat protein that transports proteins from the rough endoplasmic reticulum to the Golgi apparatus. Therefore, mutation in COP II protein will hamper the transport of proteins from the ER i.e. endoplasmic reticulum to the Golgi. Thus, the correct answer is budding vesicles from the ER.

2. The most important requirements to import proteins from cytoplasm to nucleus and peroxisome are: target sequences and protein translocator. Thus, the correct answers are protein translocator and signal sequence.

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