TASK DEFINITION: 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.
PROBLEM: Question: The binding of O2 to hemoglobin: 
 Options:  <0> Follow a hyperbolic kinetics. <1> It favors the transition from Fe2 + to Fe3 + in the heme group of the protein. <2> Induces the deprotonation of the protein. <3> It is facilitated in the presence of 2,3bisphosphoglycerate. <4> It is carried out through a covalent interaction with Fe3 +.

SOLUTION: pharmacology

PROBLEM: Question: To control the expression of certain genes according to population density, bacteria use systems of: 
 Options:  <0> Strict response <1> Two components <2> Perception of the quorum. <3> Densitometric adaptation. <4> Negative activation

SOLUTION: biology

PROBLEM: Question: In the clinical interview: 
 Options:  <0> The doctor has to show friend before professional. <1> The doctor should avoid warning the patient of the time available to assist him. <2> The professional must verify that the patient has understood the information. <3> It is advisable to take long breaks to avoid fatiguing the patient. <4> The doctor, during the interview, must remain standing or placed behind the head of the bed.

SOLUTION:
medicine