There should be no comma before the s in boards
The answer is a ‘series of steps in which enzymes work one
at a time to convert a compound to a related compound’. The intermediate products of metabolic pathways are called metabolites. An example of a metabolic cycle is the Glycolysis and Krebs cycles. The product in each step of the
metabolic pathways becomes the substrate
of the next step in the pathway. There are two types of metabolic pathways;
anabolic and catabolic
The half-life of a radioisotope is the amon the symbol 42He, the subscript 2 is the mass number for helium and the superscript 4 is the atomic number for helium.
