TASK DEFINITION: In this task, you are given a question and answer options for that question. Using this information, you have to classify each text into different topics: medicine, nursery, psychology, chemistry, pharmacology, biology.
PROBLEM: Question: A conjugated protein is: 
 Options:  <0> A protein that contains chemical components different from the permanently associated amino acids. <1> A protein that contains amino acids with side chains with conjugated bonds. <2> A protein that contains chemical components that make it insoluble. <3> A protein incorrectly folded. <4> A denatured and inactivated protein.

SOLUTION: chemistry

PROBLEM: Question: Among the partial reactions that lead to sodium carbonate by the Solvay Process, are: 
 Options:  <0> The reaction between calcium carbonate and sodium chloride. <1> The precipitation of sodium hydrogen carbonate. <2> The thermal decomposition of ammonium chloride. <3> The formation of CaCO3 from CaO and CO2. <4> The reaction of ammonia with calcium oxide.

SOLUTION: chemistry

PROBLEM: Question: In the stages of the citric acid cycle, it is required: 
 Options:  <0> NADP +. <1> FAD. <2> Acetyl-coenzyme A carboxylase. <3> Glucose. <4> At least one transaminase.

SOLUTION:
biology