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: 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 +.

Answer: pharmacology


Question: Question: The exergonic reactions of metabolism: 
 Options:  <0> Consume free energy. <1> They are thermodynamically favorable. <2> They are always quick reactions. <3> They do not require the action of enzymes. <4> They have high values ​​of activation energy.

Answer: biology


Question: Question: Question linked to image no. 14 A 68-year-old man consults for a loss of general condition in the form of asthenia and anorexia and loss of 12 Kg in the last three months. The physical examination only shows a thin patient and the lesion on the soles of the feet that can be seen in the figure. What do you think is the most likely diagnosis and / or most appropriate attitude? 
 Options:  <0> I would look for immune suppression factors, because the lesion seems to correspond to a Norwegian scabies. <1> The skin lesion looks like a callus in a physiological support area, so for now, I would not consider it related to the loss of the general state. <2> The lesion suggests a palmo-plantar form of psoriasis. <3> It seems a form of diffuse seborrheic keratosis associated with age. <4> It suggests a paraneoplastic plantar keratoderma.

Answer:
medicine