炭素 たんそ同化 どうか作用 さようじゃありませんでした
tanso dō kasayōjārimasendeshita

Noun
Desu Copula

The polite, past negative form of 炭素同化作用

1. Was not carbon assimilation.; Was not carbon fixation.

Past/Perfective
Negative
Polite
Terminal Form
Biochemistry