An enzyme that is always produced, regardless of the presence of substrates or the end products, is called
A. a constitutive enzyme
B. an isoenzyme
C. a repressible enzyme
D. an allosteric enzyme
Answer:A
An enzyme that is always produced, regardless of the presence of substrates or the end products, is called
A. a constitutive enzyme B. an isoenzyme C. a repressible enzyme D. an allosteric enzyme