Which of the following statements about enzymes is NOT true? a. enzymes work best at a specified pH
b. enzymes raise the activation energy to star a reaction
c. enzymes are proteins
d. enzymes are biological catalysts

16. which of the following accurately describes a step within transcription? a. dna polymerase uses one strand of rna as a template to put together nucleotides. b. the dna strand is used as a template for which a complementary rna strand can be produced. c. the rna strand forms a template by which dna can be built. d. the rna strand is produced within the cytoplasm.