Complex sentence: In the glycolytic pathway, the enzyme serine hydroxymethyltransferase catalyzes the cleavage of serine to yield glycine and transfers the cleaved carbon group of serine onto tetrahydrofolate, forming 5,10-methylene-tetrahydrofolate.
Split into simpler sentences: In the glycolytic pathway, the enzyme serine hydroxymethyltransferase catalyzes the cleavage of serine to yield glycine. The enzyme transfers the cleaved carbon group of serine onto tetrahydrofolate and forms 5,10-methylene-tetrahydrofolate.