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Cells 4

Protein Transport

QuestionAnswer
Nuclear pores function as very selective and tightly controlled gates that actively transport macromolecules such as proteins but allow free movement of smaller molecules such as ions True
The protein sorting and delivery pathway involves the following organelles/compartments in order RER, transport vesicle, Golgi, final destination
Soluble proteins made on the rough endoplasmic reticulum (RER) are released into the ER lumen True
Which of the following is NOT a mechanism for bringing material into a cell Exocytosis
Formation of vesicles (vesicle budding) at the plasma membrane is driven by special coat protein complexes called: Clathrins
The vesicular transport provides routes of communication between the interior of the cell and its surroundings True
For some organelles, including mitochondria, chloroplasts, peroxisomes and the interior of the nucleus, proteins are delivered directly from the cytosol True
Process of endocytosis involves a formation of plasma membrane invagination and subsequent formation of a transport vesicle True
Golgi complex (apparatus) is responsible for packaging and sorting proteins and lipids destined for secretion True
During translocation of a membrane bound protein its arrangement in the lipid bilayer is enforced by Start and Stop signals located on the polypeptide chain
Created by: Weybz13