The function of FG-nucleoporins within the nuclear pore complex is to: shield large, hydrophilic, unchaperoned proteins from entering the nucleus. prevent small, hydrophobic proteins from entering the nucleus. cleave the nuclear localization sequence (NLS) from the protein to be imported. aid GAP in the hydrolysis of GTP to GDP. All of the above. Question 5, Ultimately, the entire process of nuclear protein import is driven by: the concentration gradient of the imported protein across the nuclear membrane. the localization of Ran FG-nucleoporins in the nuclear pore complex (NPC) GTP hydrolysis None of the above Question 6 During the process of nuclear import, a GEF works in the: cytoplasm to exchange GTP for the GDP bound to Ran cytoplasm to use GTP to release Ran from importin nucleus to exchange GTP for the GDP bound to Ran nucleus to activate the intrinsic GTPase activity of Ran
Structure and Composition of Cell Membrane
Despite differences in structure and function, all living cells in multicellular organisms are surrounded by a cell membrane. Just like the outer layer of the skin separates the body from its environment similarly, the cell membrane, also known as 'plasma membrane,' separates the inner content from its exterior environment.
Cell Membrane
The cell membrane is known by different names like plasma membrane or cytoplasmic membrane, or biological membrane. The term "cell membrane" was first introduced by C. Nageli and C. Cramer in the year 1855. Later on, in 1931, the term "plasmalemma" for cell membrane was given by J. Plowe. The cell membrane separates the cell's internal environment from the extracellular space. This separation allows the protection of cells from their environment.
Prokaryotes vs Eukaryotes
The cell is defined as the basic structural and functional unit of life. The cell membrane bounds it. It is capable of independent existence.
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