Many species of which protist group have modified mitochondria that lack functional electron transport chains?
A) excavates
B) rhizarians
C) ciliates
D) unikonts

Question

Quizplus · Accepted Answer

Excavates are a diverse group of protists that exhibit a range of morphological and ecological features. Many species of excavates lack functional electron transport chains in their mitochondria, and instead use alternative pathways for energy production, such as glycolysis or hydrogenosomes. This is one of the defining characteristics of the excavate group. Rhizarians, ciliates, and unikonts do not share this feature.

Many Species of Which Protist Group Have Modified Mitochondria That