This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Unknown
In starvation activities of all of the following enzyme is increased except ? 
Select and explain. 
A. Pyruvate carboxylase, B. Pyruvate kinase, C. PEP carboxykinase, D. Glucose 6 phosphatase
B: Pyruvate kinase
Answer: B: Pyruvate kinase 
Explanation: In starvation activity of all enzymes responsible for gluconeogenesis are increased.
Pyruvate kinase is the enzyme of glycolysis. Activity of enzymes of glycolysis are suppressed in starvation. So pyruvate kinase activity is suppressed in starvation.
All other enzymes given in this question are gluconeogenic
enzyme whose activity is enhanced in starvation.