細胞 さいぼう しつ基質 きしつではありませんでした
saibōshitsukishitsudewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 細胞質基質

1. It was not cytoplasm.; It was not the cytoplasmic matrix.

Past/Perfective
Negative
Polite
Formal Register
Biology