has primary input or output D-ribose D-ribose metabolic process The chemical reactions and pathways involving D-ribose (ribo-pentose). As beta-D-ribofuranose, D-ribose forms the glycose group of all ribonucleosides, ribonucleotides and ribonucleic acids, and also of ribose phosphates, various glycosides, some coenzymes and some forms of vitamin B12. biological_process D-ribose metabolism GO:0006014 metabolic process pentose metabolic process