vitamin A biosynthetic process (GO:0035238)

The chemical reactions and pathways resulting in the formation of any of the vitamin A compounds, retinol, retinal (retinaldehyde and retinoic acid. Animals cannot synthesize vitamin A de novo, but form it through oxidative cleavage of carotenoids

General

fat-soluble vitamin biosynthetic process (GO:0042362) diterpenoid biosynthetic process (GO:0016102) vitamin A metabolic process (GO:0006776)

References

gene ontology: GO:0035238 PMID: 11158606