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: Sulfamethoxazole is microencapsulated by complex coacervation using: 
 Options:  <0> Gelatin and gum arabic. <1> Albumin and gum arabic. <2> Gelatine and sodium alginate. <3> Pectin and gelatin. <4> Gum arabic and pectin.
pharmacology

Question: The proteasome: 
 Options:  <0> It is formed by 21 homologous subunits organized in 3 rings. <1> It is a protein complex that catalyzes the hydrolysis of ubiquitinated proteins. <2> It is found only in animal eukaryotic cells. <3> Digest acylated proteins. <4> It is activated by a drug, bertezomil, in therapy for multiple myeloma.
chemistry

Question: Urea: 
 Options:  <0> It is transported to the liver for elimination. <1> It is degraded to ammonium in the urea cycle. <2> It is apolar and easily forms crystals. <3> It is obtained from arginine. <4> It has two ketone groups and one amino group.

biology

