細胞 さいぼう しつ基質 きしつじゃありませんでした
saibōshitsukishitsujārimasendeshita

Noun
Desu Copula

The polite, past negative form of 細胞質基質

1. It was not cytoplasm.; It wasn't the cytoplasmic matrix.

Past/Perfective
Negative
Polite
Terminal Form
Biology