TASK DEFINITION: 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'.
PROBLEM: Question: The tRNA-aminoacyl-transferases:
Options: <1> They link the amino acid to the ribosome. <2> They bind the amino acid to the anticodon of the tRNA. <3> They are RNA polymerases. <4> They guarantee the fidelity of the translation. <5> They are not important in the translation.

SOLUTION: 4

PROBLEM: Question: Transketolase catalyzes the transformation of ribose-5-phosphate and xylulose-5-phosphate into:
Options: <1> Two molecules of ribulose-5-phosphate. <2> Sedoheptulose-7-phosphate and glyceraldehyde-3-phosphate. <3> Fructose-6-phosphate and erythrose-4-phosphate. <4> Glyceraldehyde-3-phosphate and glucose-6-phosphate. <5> 6-Phosphogluconate and glyceraldehyde-3-phosphate.

SOLUTION: 2

PROBLEM: Question: In the quantitative analysis by gas chromatography, to minimize the uncertainties that are introduced with the injection of the sample, the flow velocity and the variations in the conditions of the columns is used:
Options: <1> Manual estimation of chromatographic peak heights. <2> The normalization of the areas. <3> The method of standard additions. <4> An external calibration <5> The internal pattern method.

SOLUTION:
5