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 following metals can be determined by complexometric or chelometric titration: 
 Options:  <1> All without exception. <2> All except transition metals. <3> All except lithium, sodium and potassium. <4> All except alkaline earth metals. <5> All except gold and silver.

SOLUTION: 3

PROBLEM: Question: What specific procedure of the experimental strategy makes it the most appropriate to test hypotheses of causality? : 
 Options:  <1> The representative sampling of the participants. <2> The manipulation of the independent variable with control of possible strange variables. <3> The realization of the study in real contexts with natural groups. <4> The identification of possible predictor variables through the retrospective analysis of the study phenomenon. <5> The application of statistical techniques for the analysis of data.

SOLUTION: 2

PROBLEM: Question: Hepatic glycolysis differs from muscle glycolysis in that: 
 Options:  <1> A low blood glucose concentration results in the inhibition of hepatic pyruvate kinase but not of muscle. <2> Hexative hexokinase has more affinity for glucose than muscle hexokinase. <3> The glycolytic enzymes in the liver are located in the cytoplasm, while in the muscle they are in cytoplasms and mitochondria. <4> Hepatic glycolysis is anaerobic, while muscle glycolysis is aerobic. <5> The final product of hepatic glycolysis is acetyl-CoA, while in muscle glycolysis that pyruvate.

SOLUTION:
1