Biology Marking Period 3 Practice Test

The feature being tested is which cell component is missing in bacteria but present in plant and animal cells. Mitochondria are membrane-bound organelles that power eukaryotic cells by producing ATP through cellular respiration. Plants and animals have mitochondria, but bacteria—being prokaryotes—do not have any membrane-bound organelles like mitochondria. In contrast, DNA is present in all cells (though bacteria have a circular chromosome in the cytoplasm, not a nucleus), the cytoplasm fills the cell interior in all three, and the cell membrane is the enclosing boundary for all. So mitochondrial presence is not common to all three cell types.