In this task, you are given a multiple-choice question about healthcare. Answer the question based on your information and classify your answers into '1', '2', '3', and '4'.

Question: Separations by capillary zone electropheresis (CZE) are characterized in that the electrophoretic medium: 
 Options:  <1> It is always formed by 1.0 M HCl. <2> It is always formed by NH3 1.0 M. <3> It is homogeneous throughout the capillary. <4> It is not homogeneous throughout the capillary. <5> It has a pH gradient throughout the entire capillary.
3

Question: The access of drugs to the central Nervous System is conditioned by the existence of the blood-brain barrier (BHE) barrier: 
 Options:  <1> Increases its permeability in case of inflammation. <2> It is homogeneous throughout the encephalon. <3> It is traversed freely by fat-soluble drugs. <4> It is maximum in the chemoreceptor area of ​​the trigger. <5> Decreases its permeability in case of inflammation.
1

Question: For which of the following steps of protein synthesis GTP (Guanosine triosphate) is needed: 
 Options:  <1> Activation of amino acids by aminioacyl-tRNA synthetases. <2> Union of ribosomes to the endoplasmic reticulum. <3> Translocation of nascent tRNA-protein complex from place A to place P. <4> Union of mRNA. <5> Union of signal recognition protein to ribosomes.

3