Cell Bio Lecture 14 & 15 Intracellular Compartments and Transport

Exam III

Cargo protein is transported

into nucleus fully folded and

NLS is not cleaved from protein

v important

between the cytosol and the nucleus

Gated transport

from cytosol to mitochondria, chloroplasts, peroxisomes, and the ER

Transmembrane transport

transport between components (the ER, Golgi, and lysosomes) and secretion out of the cell

Vesicular transport

Proteins are directed to their destinations by signal sequences or signal _________.

patches

All nuclear proteins are synthesized in the cytosol and transported into the nucleus through nuclear _____.

pores

The transport of molecules between the nucleus and the cytosol is ______________.

bi-directional

Proteins encoded by their own _____ stay within the mitochondria/

chloroplasts after the synthesis.

genes

Proteins encoded by ________ genes must be imported to different locations

of mitochondria and chloroplasts

nuclear

Transporting proteins across the membrane need a group of proteins, called _________, on the membrane.

translocators