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: Transpeptidation is the step in the biosynthesis of peptidoglycan in which: 
 Options:  <0> The union of N-acetylmuramic acid with N-acetyl glucosamine occurs inside the bacterial cell. <1> The exit of the precursors from the cytoplasm to the outside takes place. <2> The binding of the precursor to the peptidoglycan occurs outside, by glycosidic bonds. <3> The binding, by means of interpeptide bridges, between peptidoglycan chains. <4> The autolisinas act forming pores in its structure.
pharmacology

Question: Which of the following actions does insulin exert on liver tissue? 
 Options:  <0> It inhibits the uptake of glucose. <1> Activates lipolysis. <2> Inhibits the synthesis of fatty acids. <3> Activates glycogen synthesis. <4> Activates glycogenolysis.
pharmacology

Question: If a sample of size 100 has a standard deviation of 10, its typical error is: 
 Options:  <0> 10 <1> 100 <2> 0.1 <3> one. <4> There is not enough data to calculate it.

biology