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.

Q: Question: The hydrolysis of phosphatidylinositol 4,5-bisphosphate (PIP2) by phospholipase C generates the following second messengers:
Options: <0> Inositol 1,4,5-trisphosphate and triacylglycerol. <1> Inositol 1,4, 5-trisphosphate and glycerol. <2> Inositol 1,4, 5-trisphosphate and diacylglycerol. <3> Inositol 4,5-bisphosphate and diacylglycerol. <4> Inositol 4,5-bisphosphate and glycerol.

A: chemistry
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Q: Question: Fibrinogen is activated by:
Options: <0> Platelet stopper <1> Plasmina. <2> Thrombin <3> Thromboplastin. <4> Factor von Willebrand.

A: biology
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Q: Question: If we try to dissolve ammonia in water we observe that:
Options: <0> It is completely soluble. <1> It is not very soluble. <2> It should be poorly soluble, but the solubility increases markedly by acid-base reaction between them, resulting in an acid solution. <3> It should be poorly soluble, but the solubility increases markedly by redox reaction between them, releasing hydrogen. <4> It is very soluble, favored by the formation of hydrogen bonds between the two compounds.

A:
chemistry
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