When the function of the newly made polypeptide is to be secreted from the cell where it has been made, what must occur?
A) It must be translated by a ribosome that remains free of attachment to the ER.
B) Its signal sequence must target it to the ER, from which it goes to the Golgi.
C) It has a signal sequence that must be cleaved off before it can enter the ER.
D) It has a signal sequence that targets it to the cell's plasma membrane where it causes exocytosis.
E) Its signal sequence causes it to be encased in a vesicle as soon as it is translated.
(A) The structure of a neuron, showing the dendrites, nerve cell body, and axon. (B) Photomicrograph
Animal Cell Key
Eukaryotic cell
The bacterial cell wall: (a) gram-positive bacterium; (b) gram-negative bacterium.
prokaryotes cell
Function, even or odd, solution