A newly discovered unicellular organism isolated from acidic mine drainage is found to contain a cell wall, a plasma membrane, two flagella, and peroxisomes. Based just on this information, the organism is most likely ________.
A) a nonmotile prokaryote
B) a motile bacterium
C) a motile archaea
D) a nonmotile eukaryote
E) a motile eukaryote

Question

Quizplus · Accepted Answer

The presence of a cell wall and plasma membrane suggests that the organism is either a prokaryote or eukaryote. The presence of peroxisomes suggests that it is a eukaryote. The presence of flagella suggests that it is motile, and since prokaryotes typically have only one flagellum and archaea often have different types of flagella, the organism is most likely a motile eukaryote.

A Newly Discovered Unicellular Organism Isolated from Acidic Mine Drainage