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.
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Question: Question: All the following statements describe characteristics of the peptide link EXCEPT: 
 Options:  <0> It has a trans configuration. <1> It is polar but without charge. <2> It forms a single bond by directly joining the α carbons of adjacent amino acids. <3> It does not present rotation around the link. <4> Is flat.

Answer: chemistry


Question: Question: Question linked to image nº4 70-year-old man, active smoker, who underwent a chest radiological study as a preoperative protocol for prostatic hypertrophy. What would be the fundamental semiological finding of this radiological image? 
 Options:  <0> Encapsulated left pleural effusion. <1> Tumor of the anterior soft tissues of the thorax. <2> Collapse of the left upper lobe. <3> Anterior mediastinal mass. <4> Elevation of the left diaphragmatic dome.

Answer: medicine


Question: Question: The gastrointestinal system releases a peptide hormone that increases during fasting and decreases after ingestion, called: 
 Options:  <0> Leptin <1> Cholecystokinin <2> Ghrelin <3> Insulin. <4> Glycogen

Answer:
psychology