In this task, you are given a question and answer options for that question. Using this information, you have to classify each text into different topics: medicine, nursery, psychology, chemistry, pharmacology, biology.

Question: In the processing and presentation of peptides of extracellular origin intervene (n): 
 Options:  <0> The TAP proteins. <1> The tapasina. <2> The HLA-DM molecule. <3> The proteosome. <4> The HLA-B molecules.
biology

Question: The completion of the translation: 
 Options:  <0> It takes place in AUG codons. <1> It is produced by incorporation of an empty tRNA. <2> It occurs when the ribosome reaches the end of the mRNA. <3> It does not consume energy. <4> It is mediated by proteins with structure similar to tRNA.
biology

Question: A patient suffers an infection by Pseudomonas aeruginosa. Which of the following penicillins would be of your choice? 
 Options:  <0> Amoxicillin + Clavulanic acid. <1> Cloxacillin <2> Penicillin V. <3> Piperacillin-tazobactam <4> Ampicillin

pharmacology