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 on this information only, the organism is most likely to be ________.
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, plasma membrane, flagella, and especially peroxisomes (organelles enclosed by membranes) indicates the organism is a eukaryote because prokaryotes do not have membrane-bound organelles. The presence of flagella suggests it is motile.

A Newly Discovered Unicellular Organism Isolated from Acidic Mine Drainage