instruction:
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'.
question:
Question: A classification of gas chromatography detectors commonly found in the literature divides them into concentration and mass detectors, destructive and non-destructive, integral or differential and universal or selective. According to this classification:
Options: <1> The thermal conductivity detector is a selective detector. <2> The flame ionization detector responds to the concentration of the analyte. <3> The thermal conductivity detector responds to the concentration of the analyte. <4> The phosphorus and nitrogen detector (NPD) is a universal detector. <5> The thermocalorimeter detector is of the differential type.
answer:
3

question:
Question: The reaction of an alkene with metachloroperbenzoic acid causes a cyclic ether which is called:
Options: <1> Furano <2> Dioxane <3> Epoxide <4> Azirano <5> Lactone
answer:
3

question:
Question: The key regulatory enzyme in the pentose phosphate pathway is regulated positively by:
Options: <1> NADH <2> ADP. <3> GTP <4> NADP +. <5> FADH.
answer:
4