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: The following may occur in multimeric form associated with the J chain: 
 Options:  <1> IgA and IgG. <2> IgD and IgM, <3> IdE and IgD. <4> IgA and IgD. <5> IgA and IgM.
5

Question: What speed of perfusion of a drug should you administer to achieve a plasma equilibrium concentration of 10 mg / L knowing that it has a plasma clearance of 500 mL / h? (continuous perfusion): 
 Options:  <1> 50 mg / h. <2> 5 mL / h. <3> 100 mg / h. <4> 100 mg / mL. <5> 5 mg / h.
5

Question: Which of the following intermediaries can be isolated in yeasts that ferment wine and not in healthy muscle: 
 Options:  <1> Lactate <2> Acetaldehyde <3> Acetyl CoA <4> Citrate. <5> Oxalacetate.

2