<prompt> Which of the following protein is synthesized in free ribosome?Cytosolic proteinsSecretery proteinsMembrane proteinsNone  <response>: The synthesis of all proteins begins in thecytosol the nonpaiculate pa of the cytoplasm . However, proteins that will finish their synthesis on the RER have a sequence of amino acids called the signal sequence because this series of amino acids acts as a signal. Ref satyanarayana 4e 