____ recognize the sorting signals as they emerge from the ribosome and together with ____ deliver the nascent protein chain to specific membrane complexes called ____ that mediate integration into and across the membrane.
A) Signal recognition particles; signal receptors; translocons
B) Signal receptors; translocons; signal recognition particles
C) Translocons; signal recognition particles; signal receptors
D) Signal receptors; signal recognition particles; translocons
E) Translocons; signal receptors; signal recognition particles

Question

Quizplus · Accepted Answer

Signal recognition particles (SRP) recognize the sorting signals as they emerge from the ribosome and bind to the SRP receptor on the endoplasmic reticulum (ER) membrane. Together they deliver the nascent protein chain to protein translocons, which mediate integration into and across the membrane.

____ Recognize the Sorting Signals as They Emerge from the Ribosome