The sodium-potassium pump in animal cells requires cytoplasmic ATP to pump ions across the plasma membrane. When the proteins of the pump are first synthesized in the rough ER, what side of the ER membrane will the ATP binding site be on?
A) It will be on the cytoplasmic side of the ER.
B) It will be on the side facing the interior of the ER.
C) It could be facing in either direction because proteins are properly reoriented in the Golgi apparatus.
D) It doesn't matter, because the pump is not active in the ER.
Ion channels in myocardial cells
Fluorescence-activated cell sorter (FACS) separates cells that are labeled diffe
Animal Cognition
animal cell
An electron micrograph of a synapse between two nerve cells.
Red Spotted Newt (Notophthalmus v. viridescens), New Hampshire state animal.