Assertion: respiration's step | /r/CapableOf | add oxygen
Facets:
value: to rubp
type: TRANSITIVE-OBJECT
Source sentences:
text: The desired reaction is the addition of carbon dioxide to RuBP (carboxylation), a key step in the Calvin–Benson cycle, but approximately 25% of reactions by RuBisCO instead add oxygen to RuBP (oxygenation), creating a product that cannot be used within the Calvin–Benson cycle.