Assertion: chloroplast's thylakoid | /r/HasProperty | unstacked stroma
Facets:
Source sentences:
text: The red algae form a distinct group characterized by having eukaryotic cells without flagella and centrioles, chloroplasts that lack external endoplasmic reticulum and contain unstacked (stroma) thylakoids, and use phycobiliproteins as accessory pigments, which give them their red color.