SRP: Signal recognition particle. The signal recognition particle (SRP) is an abundant, cytosolic, universally conserved ribonucleoprotein (protein-RNA complex) that recognizes and targets specific proteins to the endoplasmic reticulum in eukaryotes and the plasma membrane in prokaryotes (Walter, 1981). So this is notan example of a gated channel or membrane pore. So the option ( C ) is correct. Solution SRP: Signal recognition particle. The signal recognition particle (SRP) is an abundant, cytosolic, universally conserved ribonucleoprotein (protein-RNA complex) that recognizes and targets specific proteins to the endoplasmic reticulum in eukaryotes and the plasma membrane in prokaryotes (Walter, 1981). So this is notan example of a gated channel or membrane pore. So the option ( C ) is correct..

1. SRP: Signal recognition particle. The signal recognition particle (SRP) is an abundant, cytosolic,
universally conserved ribonucleoprotein (protein-RNA complex) that recognizes and targets
specific proteins to the endoplasmic reticulum in eukaryotes and the plasma membrane in
prokaryotes (Walter, 1981). So this is notan example of a gated channel or membrane pore. So
the option ( C ) is correct.
Solution
SRP: Signal recognition particle. The signal recognition particle (SRP) is an abundant, cytosolic,
universally conserved ribonucleoprotein (protein-RNA complex) that recognizes and targets
specific proteins to the endoplasmic reticulum in eukaryotes and the plasma membrane in
prokaryotes (Walter, 1981). So this is notan example of a gated channel or membrane pore. So
the option ( C ) is correct.