In this task, you are given a multiple-choice question about healthcare. Answer the question based on your information and classify your answers into '1', '2', '3', and '4'.

[EX Q]: Question: Glucagon increases the activity of: 
 Options:  <1> Protein kinase A. <2> Acetyl-CoA carboxylase. <3> Pyruvate kinase. <4> Glycogen synthase. <5> Fosfofructoquinasa-1.
[EX A]: 1

[EX Q]: Question: COMPLETE: in the Krebs cycle 4 oxidation reactions occur, in 3 of them the final acceptor electron is ___ and in the other is ___: 
 Options:  <1> FAD / FMN. <2> NAD + / FMN. <3> NADP + / FAD. <4> NAD + / FAD. <5> FAD / NAD +.
[EX A]: 4

[EX Q]: Question: In a patient connected to invasive mechanical ventilation, when all movements are generated by the ventilator, supplying a certain volume with a constant flow during a preset time, without allowing the synchronization with spontaneous or additional respirations of the patient, we refer to: 
 Options:  <1> Assisted ventilation <2> Controlled mechanical ventilation. <3> Synchronized intermittent mandatory ventilation. <4> Spontaneous ventilation with continuous positive pressure. <5> Positive pressure at the end of expiration.
[EX A]:
2